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main.py

import warnings
from abc import ABCMeta
from copy import deepcopy
from enum import Enum
from functools import partial
from pathlib import Path
from types import FunctionType, prepare_class, resolve_bases
from typing import (
    TYPE_CHECKING,
    AbstractSet,
    Any,
    Callable,
    ClassVar,
    Dict,
    List,
    Mapping,
    Optional,
    Tuple,
    Type,
    TypeVar,
    Union,
    cast,
    no_type_check,
    overload,
)

from typing_extensions import dataclass_transform

from pydantic.v1.class_validators import ValidatorGroup, extract_root_validators, extract_validators, inherit_validators
from pydantic.v1.config import BaseConfig, Extra, inherit_config, prepare_config
from pydantic.v1.error_wrappers import ErrorWrapper, ValidationError
from pydantic.v1.errors import ConfigError, DictError, ExtraError, MissingError
from pydantic.v1.fields import (
    MAPPING_LIKE_SHAPES,
    Field,
    ModelField,
    ModelPrivateAttr,
    PrivateAttr,
    Undefined,
    is_finalvar_with_default_val,
)
from pydantic.v1.json import custom_pydantic_encoder, pydantic_encoder
from pydantic.v1.parse import Protocol, load_file, load_str_bytes
from pydantic.v1.schema import default_ref_template, model_schema
from pydantic.v1.types import PyObject, StrBytes
from pydantic.v1.typing import (
    AnyCallable,
    get_args,
    get_origin,
    is_classvar,
    is_namedtuple,
    is_union,
    resolve_annotations,
    update_model_forward_refs,
)
from pydantic.v1.utils import (
    DUNDER_ATTRIBUTES,
    ROOT_KEY,
    ClassAttribute,
    GetterDict,
    Representation,
    ValueItems,
    generate_model_signature,
    is_valid_field,
    is_valid_private_name,
    lenient_issubclass,
    sequence_like,
    smart_deepcopy,
    unique_list,
    validate_field_name,
)

if TYPE_CHECKING:
    from inspect import Signature

from pydantic.v1.class_validators import ValidatorListDict
    from pydantic.v1.types import ModelOrDc
    from pydantic.v1.typing import (
        AbstractSetIntStr,
        AnyClassMethod,
        CallableGenerator,
        DictAny,
        DictStrAny,
        MappingIntStrAny,
        ReprArgs,
        SetStr,
        TupleGenerator,
    )

Model = TypeVar('Model', bound='BaseModel')

__all__ = 'BaseModel', 'create_model', 'validate_model'

_T = TypeVar('_T')

def validate_custom_root_type(fields: Dict[str, ModelField]) -> None:
    if len(fields) > 1:
        raise ValueError(f'{ROOT_KEY} cannot be mixed with other fields')

def generate_hash_function(frozen: bool) -> Optional[Callable[[Any], int]]:
    def hash_function(self_: Any) -> int:
        return hash(self_.__class__) + hash(tuple(self_.__dict__.values()))

return hash_function if frozen else None

# If a field is of type `Callable`, its default value should be a function and cannot to ignored.
ANNOTATED_FIELD_UNTOUCHED_TYPES: Tuple[Any, ...] = (property, type, classmethod, staticmethod)
# When creating a `BaseModel` instance, we bypass all the methods, properties... added to the model
UNTOUCHED_TYPES: Tuple[Any, ...] = (FunctionType,) + ANNOTATED_FIELD_UNTOUCHED_TYPES
# Note `ModelMetaclass` refers to `BaseModel`, but is also used to *create* `BaseModel`, so we need to add this extra
# (somewhat hacky) boolean to keep track of whether we've created the `BaseModel` class yet, and therefore whether it's
# safe to refer to it. If it *hasn't* been created, we assume that the `__new__` call we're in the middle of is for
# the `BaseModel` class, since that's defined immediately after the metaclass.
_is_base_model_class_defined = False

@dataclass_transform(kw_only_default=True, field_specifiers=(Field,))
class ModelMetaclass(ABCMeta):
    @no_type_check  # noqa C901
    def __new__(mcs, name, bases, namespace, **kwargs):  # noqa C901
        fields: Dict[str, ModelField] = {}
        config = BaseConfig
        validators: 'ValidatorListDict' = {}

pre_root_validators, post_root_validators = [], []
        private_attributes: Dict[str, ModelPrivateAttr] = {}
        base_private_attributes: Dict[str, ModelPrivateAttr] = {}
        slots: SetStr = namespace.get('__slots__', ())
        slots = {slots} if isinstance(slots, str) else set(slots)
        class_vars: SetStr = set()
        hash_func: Optional[Callable[[Any], int]] = None

for base in reversed(bases):
            if _is_base_model_class_defined and issubclass(base, BaseModel) and base != BaseModel:
                fields.update(smart_deepcopy(base.__fields__))
                config = inherit_config(base.__config__, config)
                validators = inherit_validators(base.__validators__, validators)
                pre_root_validators += base.__pre_root_validators__
                post_root_validators += base.__post_root_validators__
                base_private_attributes.update(base.__private_attributes__)
                class_vars.update(base.__class_vars__)
                hash_func = base.__hash__

resolve_forward_refs = kwargs.pop('__resolve_forward_refs__', True)
        allowed_config_kwargs: SetStr = {
            key
            for key in dir(config)
            if not (key.startswith('__') and key.endswith('__'))  # skip dunder methods and attributes
        }
        config_kwargs = {key: kwargs.pop(key) for key in kwargs.keys() & allowed_config_kwargs}
        config_from_namespace = namespace.get('Config')
        if config_kwargs and config_from_namespace:
            raise TypeError('Specifying config in two places is ambiguous, use either Config attribute or class kwargs')
        config = inherit_config(config_from_namespace, config, **config_kwargs)

validators = inherit_validators(extract_validators(namespace), validators)
        vg = ValidatorGroup(validators)

for f in fields.values():
            f.set_config(config)
            extra_validators = vg.get_validators(f.name)
            if extra_validators:
                f.class_validators.update(extra_validators)
                # re-run prepare to add extra validators
                f.populate_validators()

prepare_config(config, name)

untouched_types = ANNOTATED_FIELD_UNTOUCHED_TYPES

def is_untouched(v: Any) -> bool:
            return isinstance(v, untouched_types) or v.__class__.__name__ == 'cython_function_or_method'

if (namespace.get('__module__'), namespace.get('__qualname__')) != ('pydantic.main', 'BaseModel'):
            annotations = resolve_annotations(namespace.get('__annotations__', {}), namespace.get('__module__', None))
            # annotation only fields need to come first in fields
            for ann_name, ann_type in annotations.items():
                if is_classvar(ann_type):
                    class_vars.add(ann_name)
                elif is_finalvar_with_default_val(ann_type, namespace.get(ann_name, Undefined)):
                    class_vars.add(ann_name)
                elif is_valid_field(ann_name):
                    validate_field_name(bases, ann_name)
                    value = namespace.get(ann_name, Undefined)
                    allowed_types = get_args(ann_type) if is_union(get_origin(ann_type)) else (ann_type,)
                    if (
                        is_untouched(value)
                        and ann_type != PyObject
                        and not any(
                            lenient_issubclass(get_origin(allowed_type), Type) for allowed_type in allowed_types
                        )
                    ):
                        continue
                    fields[ann_name] = ModelField.infer(
                        name=ann_name,
                        value=value,
                        annotation=ann_type,
                        class_validators=vg.get_validators(ann_name),
                        config=config,
                    )
                elif ann_name not in namespace and config.underscore_attrs_are_private:
                    private_attributes[ann_name] = PrivateAttr()

untouched_types = UNTOUCHED_TYPES + config.keep_untouched
            for var_name, value in namespace.items():
                can_be_changed = var_name not in class_vars and not is_untouched(value)
                if isinstance(value, ModelPrivateAttr):
                    if not is_valid_private_name(var_name):
                        raise NameError(
                            f'Private attributes "{var_name}" must not be a valid field name; '
                            f'Use sunder or dunder names, e. g. "_{var_name}" or "__{var_name}__"'
                        )
                    private_attributes[var_name] = value
                elif config.underscore_attrs_are_private and is_valid_private_name(var_name) and can_be_changed:
                    private_attributes[var_name] = PrivateAttr(default=value)
                elif is_valid_field(var_name) and var_name not in annotations and can_be_changed:
                    validate_field_name(bases, var_name)
                    inferred = ModelField.infer(
                        name=var_name,
                        value=value,
                        annotation=annotations.get(var_name, Undefined),
                        class_validators=vg.get_validators(var_name),
                        config=config,
                    )
                    if var_name in fields:
                        if lenient_issubclass(inferred.type_, fields[var_name].type_):
                            inferred.type_ = fields[var_name].type_
                        else:
                            raise TypeError(
                                f'The type of {name}.{var_name} differs from the new default value; '
                                f'if you wish to change the type of this field, please use a type annotation'
                            )
                    fields[var_name] = inferred

_custom_root_type = ROOT_KEY in fields
        if _custom_root_type:
            validate_custom_root_type(fields)
        vg.check_for_unused()
        if config.json_encoders:
            json_encoder = partial(custom_pydantic_encoder, config.json_encoders)
        else:
            json_encoder = pydantic_encoder
        pre_rv_new, post_rv_new = extract_root_validators(namespace)

if hash_func is None:
            hash_func = generate_hash_function(config.frozen)

exclude_from_namespace = fields | private_attributes.keys() | {'__slots__'}
        new_namespace = {
            '__config__': config,
            '__fields__': fields,
            '__exclude_fields__': {
                name: field.field_info.exclude for name, field in fields.items() if field.field_info.exclude is not None
            }
            or None,
            '__include_fields__': {
                name: field.field_info.include for name, field in fields.items() if field.field_info.include is not None
            }
            or None,
            '__validators__': vg.validators,
            '__pre_root_validators__': unique_list(
                pre_root_validators + pre_rv_new,
                name_factory=lambda v: v.__name__,
            ),
            '__post_root_validators__': unique_list(
                post_root_validators + post_rv_new,
                name_factory=lambda skip_on_failure_and_v: skip_on_failure_and_v[1].__name__,
            ),
            '__schema_cache__': {},
            '__json_encoder__': staticmethod(json_encoder),
            '__custom_root_type__': _custom_root_type,
            '__private_attributes__': {**base_private_attributes, **private_attributes},
            '__slots__': slots | private_attributes.keys(),
            '__hash__': hash_func,
            '__class_vars__': class_vars,
            **{n: v for n, v in namespace.items() if n not in exclude_from_namespace},
        }

cls = super().__new__(mcs, name, bases, new_namespace, **kwargs)
        # set __signature__ attr only for model class, but not for its instances
        cls.__signature__ = ClassAttribute('__signature__', generate_model_signature(cls.__init__, fields, config))
        if resolve_forward_refs:
            cls.__try_update_forward_refs__()

# preserve `__set_name__` protocol defined in https://peps.python.org/pep-0487
        # for attributes not in `new_namespace` (e.g. private attributes)
        for name, obj in namespace.items():
            if name not in new_namespace:
                set_name = getattr(obj, '__set_name__', None)
                if callable(set_name):
                    set_name(cls, name)

return cls

def __instancecheck__(self, instance: Any) -> bool:
        """
        Avoid calling ABC _abc_subclasscheck unless we're pretty sure.

See #3829 and python/cpython#92810
        """
        return hasattr(instance, '__fields__') and super().__instancecheck__(instance)

object_setattr = object.__setattr__

class BaseModel(Representation, metaclass=ModelMetaclass):
    if TYPE_CHECKING:
        # populated by the metaclass, defined here to help IDEs only
        __fields__: ClassVar[Dict[str, ModelField]] = {}
        __include_fields__: ClassVar[Optional[Mapping[str, Any]]] = None
        __exclude_fields__: ClassVar[Optional[Mapping[str, Any]]] = None
        __validators__: ClassVar[Dict[str, AnyCallable]] = {}
        __pre_root_validators__: ClassVar[List[AnyCallable]]
        __post_root_validators__: ClassVar[List[Tuple[bool, AnyCallable]]]
        __config__: ClassVar[Type[BaseConfig]] = BaseConfig
        __json_encoder__: ClassVar[Callable[[Any], Any]] = lambda x: x
        __schema_cache__: ClassVar['DictAny'] = {}
        __custom_root_type__: ClassVar[bool] = False
        __signature__: ClassVar['Signature']
        __private_attributes__: ClassVar[Dict[str, ModelPrivateAttr]]
        __class_vars__: ClassVar[SetStr]
        __fields_set__: ClassVar[SetStr] = set()

Config = BaseConfig
    __slots__ = ('__dict__', '__fields_set__')
    __doc__ = ''  # Null out the Representation docstring

def __init__(__pydantic_self__, **data: Any) -> None:
        """
        Create a new model by parsing and validating input data from keyword arguments.

Raises ValidationError if the input data cannot be parsed to form a valid model.
        """
        # Uses something other than `self` the first arg to allow "self" as a settable attribute
        values, fields_set, validation_error = validate_model(__pydantic_self__.__class__, data)
        if validation_error:
            raise validation_error
        try:
            object_setattr(__pydantic_self__, '__dict__', values)
        except TypeError as e:
            raise TypeError(
                'Model values must be a dict; you may not have returned a dictionary from a root validator'
            ) from e
        object_setattr(__pydantic_self__, '__fields_set__', fields_set)
        __pydantic_self__._init_private_attributes()

@no_type_check
    def __setattr__(self, name, value):  # noqa: C901 (ignore complexity)
        if name in self.__private_attributes__ or name in DUNDER_ATTRIBUTES:
            return object_setattr(self, name, value)

if self.__config__.extra is not Extra.allow and name not in self.__fields__:
            raise ValueError(f'"{self.__class__.__name__}" object has no field "{name}"')
        elif not self.__config__.allow_mutation or self.__config__.frozen:
            raise TypeError(f'"{self.__class__.__name__}" is immutable and does not support item assignment')
        elif name in self.__fields__ and self.__fields__[name].final:
            raise TypeError(
                f'"{self.__class__.__name__}" object "{name}" field is final and does not support reassignment'
            )
        elif self.__config__.validate_assignment:
            new_values = {**self.__dict__, name: value}

for validator in self.__pre_root_validators__:
                try:
                    new_values = validator(self.__class__, new_values)
                except (ValueError, TypeError, AssertionError) as exc:
                    raise ValidationError([ErrorWrapper(exc, loc=ROOT_KEY)], self.__class__)

known_field = self.__fields__.get(name, None)
            if known_field:
                # We want to
                # - make sure validators are called without the current value for this field inside `values`
                # - keep other values (e.g. submodels) untouched (using `BaseModel.dict()` will change them into dicts)
                # - keep the order of the fields
                if not known_field.field_info.allow_mutation:
                    raise TypeError(f'"{known_field.name}" has allow_mutation set to False and cannot be assigned')
                dict_without_original_value = {k: v for k, v in self.__dict__.items() if k != name}
                value, error_ = known_field.validate(value, dict_without_original_value, loc=name, cls=self.__class__)
                if error_:
                    raise ValidationError([error_], self.__class__)
                else:
                    new_values[name] = value

errors = []
            for skip_on_failure, validator in self.__post_root_validators__:
                if skip_on_failure and errors:
                    continue
                try:
                    new_values = validator(self.__class__, new_values)
                except (ValueError, TypeError, AssertionError) as exc:
                    errors.append(ErrorWrapper(exc, loc=ROOT_KEY))
            if errors:
                raise ValidationError(errors, self.__class__)

# update the whole __dict__ as other values than just `value`
            # may be changed (e.g. with `root_validator`)
            object_setattr(self, '__dict__', new_values)
        else:
            self.__dict__[name] = value

self.__fields_set__.add(name)

def __getstate__(self) -> 'DictAny':
        private_attrs = ((k, getattr(self, k, Undefined)) for k in self.__private_attributes__)
        return {
            '__dict__': self.__dict__,
            '__fields_set__': self.__fields_set__,
            '__private_attribute_values__': {k: v for k, v in private_attrs if v is not Undefined},
        }

def __setstate__(self, state: 'DictAny') -> None:
        object_setattr(self, '__dict__', state['__dict__'])
        object_setattr(self, '__fields_set__', state['__fields_set__'])
        for name, value in state.get('__private_attribute_values__', {}).items():
            object_setattr(self, name, value)

def _init_private_attributes(self) -> None:
        for name, private_attr in self.__private_attributes__.items():
            default = private_attr.get_default()
            if default is not Undefined:
                object_setattr(self, name, default)

def dict(
        self,
        *,
        include: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']] = None,
        exclude: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']] = None,
        by_alias: bool = False,
        skip_defaults: Optional[bool] = None,
        exclude_unset: bool = False,
        exclude_defaults: bool = False,
        exclude_none: bool = False,
    ) -> 'DictStrAny':
        """
        Generate a dictionary representation of the model, optionally specifying which fields to include or exclude.

"""
        if skip_defaults is not None:
            warnings.warn(
                f'{self.__class__.__name__}.dict(): "skip_defaults" is deprecated and replaced by "exclude_unset"',
                DeprecationWarning,
            )
            exclude_unset = skip_defaults

return dict(
            self._iter(
                to_dict=True,
                by_alias=by_alias,
                include=include,
                exclude=exclude,
                exclude_unset=exclude_unset,
                exclude_defaults=exclude_defaults,
                exclude_none=exclude_none,
            )
        )

def json(
        self,
        *,
        include: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']] = None,
        exclude: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']] = None,
        by_alias: bool = False,
        skip_defaults: Optional[bool] = None,
        exclude_unset: bool = False,
        exclude_defaults: bool = False,
        exclude_none: bool = False,
        encoder: Optional[Callable[[Any], Any]] = None,
        models_as_dict: bool = True,
        **dumps_kwargs: Any,
    ) -> str:
        """
        Generate a JSON representation of the model, `include` and `exclude` arguments as per `dict()`.

`encoder` is an optional function to supply as `default` to json.dumps(), other arguments as per `json.dumps()`.
        """
        if skip_defaults is not None:
            warnings.warn(
                f'{self.__class__.__name__}.json(): "skip_defaults" is deprecated and replaced by "exclude_unset"',
                DeprecationWarning,
            )
            exclude_unset = skip_defaults
        encoder = cast(Callable[[Any], Any], encoder or self.__json_encoder__)

# We don't directly call `self.dict()`, which does exactly this with `to_dict=True`
        # because we want to be able to keep raw `BaseModel` instances and not as `dict`.
        # This allows users to write custom JSON encoders for given `BaseModel` classes.
        data = dict(
            self._iter(
                to_dict=models_as_dict,
                by_alias=by_alias,
                include=include,
                exclude=exclude,
                exclude_unset=exclude_unset,
                exclude_defaults=exclude_defaults,
                exclude_none=exclude_none,
            )
        )
        if self.__custom_root_type__:
            data = data[ROOT_KEY]
        return self.__config__.json_dumps(data, default=encoder, **dumps_kwargs)

@classmethod
    def _enforce_dict_if_root(cls, obj: Any) -> Any:
        if cls.__custom_root_type__ and (
            not (isinstance(obj, dict) and obj.keys() == {ROOT_KEY})
            and not (isinstance(obj, BaseModel) and obj.__fields__.keys() == {ROOT_KEY})
            or cls.__fields__[ROOT_KEY].shape in MAPPING_LIKE_SHAPES
        ):
            return {ROOT_KEY: obj}
        else:
            return obj

@classmethod
    def parse_obj(cls: Type['Model'], obj: Any) -> 'Model':
        obj = cls._enforce_dict_if_root(obj)
        if not isinstance(obj, dict):
            try:
                obj = dict(obj)
            except (TypeError, ValueError) as e:
                exc = TypeError(f'{cls.__name__} expected dict not {obj.__class__.__name__}')
                raise ValidationError([ErrorWrapper(exc, loc=ROOT_KEY)], cls) from e
        return cls(**obj)

@classmethod
    def parse_raw(
        cls: Type['Model'],
        b: StrBytes,
        *,
        content_type: str = None,
        encoding: str = 'utf8',
        proto: Protocol = None,
        allow_pickle: bool = False,
    ) -> 'Model':
        try:
            obj = load_str_bytes(
                b,
                proto=proto,
                content_type=content_type,
                encoding=encoding,
                allow_pickle=allow_pickle,
                json_loads=cls.__config__.json_loads,
            )
        except (ValueError, TypeError, UnicodeDecodeError) as e:
            raise ValidationError([ErrorWrapper(e, loc=ROOT_KEY)], cls)
        return cls.parse_obj(obj)

@classmethod
    def parse_file(
        cls: Type['Model'],
        path: Union[str, Path],
        *,
        content_type: str = None,
        encoding: str = 'utf8',
        proto: Protocol = None,
        allow_pickle: bool = False,
    ) -> 'Model':
        obj = load_file(
            path,
            proto=proto,
            content_type=content_type,
            encoding=encoding,
            allow_pickle=allow_pickle,
            json_loads=cls.__config__.json_loads,
        )
        return cls.parse_obj(obj)

@classmethod
    def from_orm(cls: Type['Model'], obj: Any) -> 'Model':
        if not cls.__config__.orm_mode:
            raise ConfigError('You must have the config attribute orm_mode=True to use from_orm')
        obj = {ROOT_KEY: obj} if cls.__custom_root_type__ else cls._decompose_class(obj)
        m = cls.__new__(cls)
        values, fields_set, validation_error = validate_model(cls, obj)
        if validation_error:
            raise validation_error
        object_setattr(m, '__dict__', values)
        object_setattr(m, '__fields_set__', fields_set)
        m._init_private_attributes()
        return m

@classmethod
    def construct(cls: Type['Model'], _fields_set: Optional['SetStr'] = None, **values: Any) -> 'Model':
        """
        Creates a new model setting __dict__ and __fields_set__ from trusted or pre-validated data.
        Default values are respected, but no other validation is performed.
        Behaves as if `Config.extra = 'allow'` was set since it adds all passed values
        """
        m = cls.__new__(cls)
        fields_values: Dict[str, Any] = {}
        for name, field in cls.__fields__.items():
            if field.alt_alias and field.alias in values:
                fields_values[name] = values[field.alias]
            elif name in values:
                fields_values[name] = values[name]
            elif not field.required:
                fields_values[name] = field.get_default()
        fields_values.update(values)
        object_setattr(m, '__dict__', fields_values)
        if _fields_set is None:
            _fields_set = set(values.keys())
        object_setattr(m, '__fields_set__', _fields_set)
        m._init_private_attributes()
        return m

def _copy_and_set_values(self: 'Model', values: 'DictStrAny', fields_set: 'SetStr', *, deep: bool) -> 'Model':
        if deep:
            # chances of having empty dict here are quite low for using smart_deepcopy
            values = deepcopy(values)

cls = self.__class__
        m = cls.__new__(cls)
        object_setattr(m, '__dict__', values)
        object_setattr(m, '__fields_set__', fields_set)
        for name in self.__private_attributes__:
            value = getattr(self, name, Undefined)
            if value is not Undefined:
                if deep:
                    value = deepcopy(value)
                object_setattr(m, name, value)

return m

def copy(
        self: 'Model',
        *,
        include: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']] = None,
        exclude: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']] = None,
        update: Optional['DictStrAny'] = None,
        deep: bool = False,
    ) -> 'Model':
        """
        Duplicate a model, optionally choose which fields to include, exclude and change.

:param include: fields to include in new model
        :param exclude: fields to exclude from new model, as with values this takes precedence over include
        :param update: values to change/add in the new model. Note: the data is not validated before creating
            the new model: you should trust this data
        :param deep: set to `True` to make a deep copy of the model
        :return: new model instance
        """

values = dict(
            self._iter(to_dict=False, by_alias=False, include=include, exclude=exclude, exclude_unset=False),
            **(update or {}),
        )

# new `__fields_set__` can have unset optional fields with a set value in `update` kwarg
        if update:
            fields_set = self.__fields_set__ | update.keys()
        else:
            fields_set = set(self.__fields_set__)

return self._copy_and_set_values(values, fields_set, deep=deep)

@classmethod
    def schema(cls, by_alias: bool = True, ref_template: str = default_ref_template) -> 'DictStrAny':
        cached = cls.__schema_cache__.get((by_alias, ref_template))
        if cached is not None:
            return cached
        s = model_schema(cls, by_alias=by_alias, ref_template=ref_template)
        cls.__schema_cache__[(by_alias, ref_template)] = s
        return s

@classmethod
    def schema_json(
        cls, *, by_alias: bool = True, ref_template: str = default_ref_template, **dumps_kwargs: Any
    ) -> str:
        from pydantic.v1.json import pydantic_encoder

return cls.__config__.json_dumps(
            cls.schema(by_alias=by_alias, ref_template=ref_template), default=pydantic_encoder, **dumps_kwargs
        )

@classmethod
    def __get_validators__(cls) -> 'CallableGenerator':
        yield cls.validate

@classmethod
    def validate(cls: Type['Model'], value: Any) -> 'Model':
        if isinstance(value, cls):
            copy_on_model_validation = cls.__config__.copy_on_model_validation
            # whether to deep or shallow copy the model on validation, None means do not copy
            deep_copy: Optional[bool] = None
            if copy_on_model_validation not in {'deep', 'shallow', 'none'}:
                # Warn about deprecated behavior
                warnings.warn(
                    "`copy_on_model_validation` should be a string: 'deep', 'shallow' or 'none'", DeprecationWarning
                )
                if copy_on_model_validation:
                    deep_copy = False

if copy_on_model_validation == 'shallow':
                # shallow copy
                deep_copy = False
            elif copy_on_model_validation == 'deep':
                # deep copy
                deep_copy = True

if deep_copy is None:
                return value
            else:
                return value._copy_and_set_values(value.__dict__, value.__fields_set__, deep=deep_copy)

value = cls._enforce_dict_if_root(value)

if isinstance(value, dict):
            return cls(**value)
        elif cls.__config__.orm_mode:
            return cls.from_orm(value)
        else:
            try:
                value_as_dict = dict(value)
            except (TypeError, ValueError) as e:
                raise DictError() from e
            return cls(**value_as_dict)

@classmethod
    def _decompose_class(cls: Type['Model'], obj: Any) -> GetterDict:
        if isinstance(obj, GetterDict):
            return obj
        return cls.__config__.getter_dict(obj)

@classmethod
    @no_type_check
    def _get_value(
        cls,
        v: Any,
        to_dict: bool,
        by_alias: bool,
        include: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']],
        exclude: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']],
        exclude_unset: bool,
        exclude_defaults: bool,
        exclude_none: bool,
    ) -> Any:
        if isinstance(v, BaseModel):
            if to_dict:
                v_dict = v.dict(
                    by_alias=by_alias,
                    exclude_unset=exclude_unset,
                    exclude_defaults=exclude_defaults,
                    include=include,
                    exclude=exclude,
                    exclude_none=exclude_none,
                )
                if ROOT_KEY in v_dict:
                    return v_dict[ROOT_KEY]
                return v_dict
            else:
                return v.copy(include=include, exclude=exclude)

value_exclude = ValueItems(v, exclude) if exclude else None
        value_include = ValueItems(v, include) if include else None

if isinstance(v, dict):
            return {
                k_: cls._get_value(
                    v_,
                    to_dict=to_dict,
                    by_alias=by_alias,
                    exclude_unset=exclude_unset,
                    exclude_defaults=exclude_defaults,
                    include=value_include and value_include.for_element(k_),
                    exclude=value_exclude and value_exclude.for_element(k_),
                    exclude_none=exclude_none,
                )
                for k_, v_ in v.items()
                if (not value_exclude or not value_exclude.is_excluded(k_))
                and (not value_include or value_include.is_included(k_))
            }

elif sequence_like(v):
            seq_args = (
                cls._get_value(
                    v_,
                    to_dict=to_dict,
                    by_alias=by_alias,
                    exclude_unset=exclude_unset,
                    exclude_defaults=exclude_defaults,
                    include=value_include and value_include.for_element(i),
                    exclude=value_exclude and value_exclude.for_element(i),
                    exclude_none=exclude_none,
                )
                for i, v_ in enumerate(v)
                if (not value_exclude or not value_exclude.is_excluded(i))
                and (not value_include or value_include.is_included(i))
            )

return v.__class__(*seq_args) if is_namedtuple(v.__class__) else v.__class__(seq_args)

elif isinstance(v, Enum) and getattr(cls.Config, 'use_enum_values', False):
            return v.value

else:
            return v

@classmethod
    def __try_update_forward_refs__(cls, **localns: Any) -> None:
        """
        Same as update_forward_refs but will not raise exception
        when forward references are not defined.
        """
        update_model_forward_refs(cls, cls.__fields__.values(), cls.__config__.json_encoders, localns, (NameError,))

@classmethod
    def update_forward_refs(cls, **localns: Any) -> None:
        """
        Try to update ForwardRefs on fields based on this Model, globalns and localns.
        """
        update_model_forward_refs(cls, cls.__fields__.values(), cls.__config__.json_encoders, localns)

def __iter__(self) -> 'TupleGenerator':
        """
        so `dict(model)` works
        """
        yield from self.__dict__.items()

def _iter(
        self,
        to_dict: bool = False,
        by_alias: bool = False,
        include: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']] = None,
        exclude: Optional[Union['AbstractSetIntStr', 'MappingIntStrAny']] = None,
        exclude_unset: bool = False,
        exclude_defaults: bool = False,
        exclude_none: bool = False,
    ) -> 'TupleGenerator':
        # Merge field set excludes with explicit exclude parameter with explicit overriding field set options.
        # The extra "is not None" guards are not logically necessary but optimizes performance for the simple case.
        if exclude is not None or self.__exclude_fields__ is not None:
            exclude = ValueItems.merge(self.__exclude_fields__, exclude)

if include is not None or self.__include_fields__ is not None:
            include = ValueItems.merge(self.__include_fields__, include, intersect=True)

allowed_keys = self._calculate_keys(
            include=include, exclude=exclude, exclude_unset=exclude_unset  # type: ignore
        )
        if allowed_keys is None and not (to_dict or by_alias or exclude_unset or exclude_defaults or exclude_none):
            # huge boost for plain _iter()
            yield from self.__dict__.items()
            return

value_exclude = ValueItems(self, exclude) if exclude is not None else None
        value_include = ValueItems(self, include) if include is not None else None

for field_key, v in self.__dict__.items():
            if (allowed_keys is not None and field_key not in allowed_keys) or (exclude_none and v is None):
                continue

if exclude_defaults:
                model_field = self.__fields__.get(field_key)
                if not getattr(model_field, 'required', True) and getattr(model_field, 'default', _missing) == v:
                    continue

if by_alias and field_key in self.__fields__:
                dict_key = self.__fields__[field_key].alias
            else:
                dict_key = field_key

if to_dict or value_include or value_exclude:
                v = self._get_value(
                    v,
                    to_dict=to_dict,
                    by_alias=by_alias,
                    include=value_include and value_include.for_element(field_key),
                    exclude=value_exclude and value_exclude.for_element(field_key),
                    exclude_unset=exclude_unset,
                    exclude_defaults=exclude_defaults,
                    exclude_none=exclude_none,
                )
            yield dict_key, v

def _calculate_keys(
        self,
        include: Optional['MappingIntStrAny'],
        exclude: Optional['MappingIntStrAny'],
        exclude_unset: bool,
        update: Optional['DictStrAny'] = None,
    ) -> Optional[AbstractSet[str]]:
        if include is None and exclude is None and exclude_unset is False:
            return None

keys: AbstractSet[str]
        if exclude_unset:
            keys = self.__fields_set__.copy()
        else:
            keys = self.__dict__.keys()

if include is not None:
            keys &= include.keys()

if update:
            keys -= update.keys()

if exclude:
            keys -= {k for k, v in exclude.items() if ValueItems.is_true(v)}

return keys

def __eq__(self, other: Any) -> bool:
        if isinstance(other, BaseModel):
            return self.dict() == other.dict()
        else:
            return self.dict() == other

def __repr_args__(self) -> 'ReprArgs':
        return [
            (k, v)
            for k, v in self.__dict__.items()
            if k not in DUNDER_ATTRIBUTES and (k not in self.__fields__ or self.__fields__[k].field_info.repr)
        ]

_is_base_model_class_defined = True

@overload
def create_model(
    __model_name: str,
    *,
    __config__: Optional[Type[BaseConfig]] = None,
    __base__: None = None,
    __module__: str = __name__,
    __validators__: Dict[str, 'AnyClassMethod'] = None,
    __cls_kwargs__: Dict[str, Any] = None,
    **field_definitions: Any,
) -> Type['BaseModel']:
    ...

@overload
def create_model(
    __model_name: str,
    *,
    __config__: Optional[Type[BaseConfig]] = None,
    __base__: Union[Type['Model'], Tuple[Type['Model'], ...]],
    __module__: str = __name__,
    __validators__: Dict[str, 'AnyClassMethod'] = None,
    __cls_kwargs__: Dict[str, Any] = None,
    **field_definitions: Any,
) -> Type['Model']:
    ...

def create_model(
    __model_name: str,
    *,
    __config__: Optional[Type[BaseConfig]] = None,
    __base__: Union[None, Type['Model'], Tuple[Type['Model'], ...]] = None,
    __module__: str = __name__,
    __validators__: Dict[str, 'AnyClassMethod'] = None,
    __cls_kwargs__: Dict[str, Any] = None,
    __slots__: Optional[Tuple[str, ...]] = None,
    **field_definitions: Any,
) -> Type['Model']:
    """
    Dynamically create a model.
    :param __model_name: name of the created model
    :param __config__: config class to use for the new model
    :param __base__: base class for the new model to inherit from
    :param __module__: module of the created model
    :param __validators__: a dict of method names and @validator class methods
    :param __cls_kwargs__: a dict for class creation
    :param __slots__: Deprecated, `__slots__` should not be passed to `create_model`
    :param field_definitions: fields of the model (or extra fields if a base is supplied)
        in the format `<name>=(<type>, <default default>)` or `<name>=<default value>, e.g.
        `foobar=(str, ...)` or `foobar=123`, or, for complex use-cases, in the format
        `<name>=<Field>` or `<name>=(<type>, <FieldInfo>)`, e.g.
        `foo=Field(datetime, default_factory=datetime.utcnow, alias='bar')` or
        `foo=(str, FieldInfo(title='Foo'))`
    """
    if __slots__ is not None:
        # __slots__ will be ignored from here on
        warnings.warn('__slots__ should not be passed to create_model', RuntimeWarning)

if __base__ is not None:
        if __config__ is not None:
            raise ConfigError('to avoid confusion __config__ and __base__ cannot be used together')
        if not isinstance(__base__, tuple):
            __base__ = (__base__,)
    else:
        __base__ = (cast(Type['Model'], BaseModel),)

__cls_kwargs__ = __cls_kwargs__ or {}

fields = {}
    annotations = {}

for f_name, f_def in field_definitions.items():
        if not is_valid_field(f_name):
            warnings.warn(f'fields may not start with an underscore, ignoring "{f_name}"', RuntimeWarning)
        if isinstance(f_def, tuple):
            try:
                f_annotation, f_value = f_def
            except ValueError as e:
                raise ConfigError(
                    'field definitions should either be a tuple of (<type>, <default>) or just a '
                    'default value, unfortunately this means tuples as '
                    'default values are not allowed'
                ) from e
        else:
            f_annotation, f_value = None, f_def

if f_annotation:
            annotations[f_name] = f_annotation
        fields[f_name] = f_value

namespace: 'DictStrAny' = {'__annotations__': annotations, '__module__': __module__}
    if __validators__:
        namespace.update(__validators__)
    namespace.update(fields)
    if __config__:
        namespace['Config'] = inherit_config(__config__, BaseConfig)
    resolved_bases = resolve_bases(__base__)
    meta, ns, kwds = prepare_class(__model_name, resolved_bases, kwds=__cls_kwargs__)
    if resolved_bases is not __base__:
        ns['__orig_bases__'] = __base__
    namespace.update(ns)
    return meta(__model_name, resolved_bases, namespace, **kwds)

_missing = object()

def validate_model(  # noqa: C901 (ignore complexity)
    model: Type[BaseModel], input_data: 'DictStrAny', cls: 'ModelOrDc' = None
) -> Tuple['DictStrAny', 'SetStr', Optional[ValidationError]]:
    """
    validate data against a model.
    """
    values = {}
    errors = []
    # input_data names, possibly alias
    names_used = set()
    # field names, never aliases
    fields_set = set()
    config = model.__config__
    check_extra = config.extra is not Extra.ignore
    cls_ = cls or model

for validator in model.__pre_root_validators__:
        try:
            input_data = validator(cls_, input_data)
        except (ValueError, TypeError, AssertionError) as exc:
            return {}, set(), ValidationError([ErrorWrapper(exc, loc=ROOT_KEY)], cls_)

for name, field in model.__fields__.items():
        value = input_data.get(field.alias, _missing)
        using_name = False
        if value is _missing and config.allow_population_by_field_name and field.alt_alias:
            value = input_data.get(field.name, _missing)
            using_name = True

if value is _missing:
            if field.required:
                errors.append(ErrorWrapper(MissingError(), loc=field.alias))
                continue

value = field.get_default()

if not config.validate_all and not field.validate_always:
                values[name] = value
                continue
        else:
            fields_set.add(name)
            if check_extra:
                names_used.add(field.name if using_name else field.alias)

v_, errors_ = field.validate(value, values, loc=field.alias, cls=cls_)
        if isinstance(errors_, ErrorWrapper):
            errors.append(errors_)
        elif isinstance(errors_, list):
            errors.extend(errors_)
        else:
            values[name] = v_

if check_extra:
        if isinstance(input_data, GetterDict):
            extra = input_data.extra_keys() - names_used
        else:
            extra = input_data.keys() - names_used
        if extra:
            fields_set |= extra
            if config.extra is Extra.allow:
                for f in extra:
                    values[f] = input_data[f]
            else:
                for f in sorted(extra):
                    errors.append(ErrorWrapper(ExtraError(), loc=f))

for skip_on_failure, validator in model.__post_root_validators__:
        if skip_on_failure and errors:
            continue
        try:
            values = validator(cls_, values)
        except (ValueError, TypeError, AssertionError) as exc:
            errors.append(ErrorWrapper(exc, loc=ROOT_KEY))

if errors:
        return values, fields_set, ValidationError(errors, cls_)
    else:
        return values, fields_set, None

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2025-04-04 07:56:48
..	dir	-	root/root	0755	2025-04-04 07:56:48
__pycache__	dir	-	root/root	0755	2025-04-04 07:56:49
__init__.py	text/x-script.python	2.88 KB	root/root	0644	2025-04-04 07:56:48
_hypothesis_plugin.py	text/plain	14.5 KB	root/root	0644	2025-04-04 07:56:48
annotated_types.py	text/x-script.python	3.08 KB	root/root	0644	2025-04-04 07:56:48
class_validators.py	text/x-script.python	14.33 KB	root/root	0644	2025-04-04 07:56:48
color.py	text/plain	16.45 KB	root/root	0644	2025-04-04 07:56:48
config.py	text/x-script.python	6.38 KB	root/root	0644	2025-04-04 07:56:48
dataclasses.py	text/plain	17.75 KB	root/root	0644	2025-04-04 07:56:48
datetime_parse.py	text/plain	7.54 KB	root/root	0644	2025-04-04 07:56:48
decorator.py	text/x-script.python	10.1 KB	root/root	0644	2025-04-04 07:56:48
env_settings.py	text/x-script.python	13.77 KB	root/root	0644	2025-04-04 07:56:48
error_wrappers.py	text/x-script.python	5.07 KB	root/root	0644	2025-04-04 07:56:48
errors.py	text/x-script.python	17.31 KB	root/root	0644	2025-04-04 07:56:48
fields.py	text/x-script.python	49.46 KB	root/root	0644	2025-04-04 07:56:48
generics.py	text/x-script.python	17.45 KB	root/root	0644	2025-04-04 07:56:48
json.py	text/x-script.python	3.31 KB	root/root	0644	2025-04-04 07:56:48
main.py	text/x-script.python	43.5 KB	root/root	0644	2025-04-04 07:56:48
mypy.py	text/x-script.python	37.87 KB	root/root	0644	2025-04-04 07:56:48
networks.py	text/x-script.python	21.61 KB	root/root	0644	2025-04-04 07:56:48
parse.py	text/x-script.python	1.78 KB	root/root	0644	2025-04-04 07:56:48
py.typed	application/x-empty	0 B	root/root	0644	2025-04-04 07:56:48
schema.py	text/x-script.python	46.64 KB	root/root	0644	2025-04-04 07:56:48
tools.py	text/x-script.python	2.81 KB	root/root	0644	2025-04-04 07:56:48
types.py	text/x-script.python	34.62 KB	root/root	0644	2025-04-04 07:56:48
typing.py	text/x-script.python	18.93 KB	root/root	0644	2025-04-04 07:56:48
utils.py	text/x-script.python	25.31 KB	root/root	0644	2025-04-04 07:56:48
validators.py	text/x-script.python	21.48 KB	root/root	0644	2025-04-04 07:56:48
version.py	text/x-script.python	1.01 KB	root/root	0644	2025-04-04 07:56:48

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