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to set the default, use ellipsis (``...``) to indicate the field is required
:param default_factory: callable that will be called when a default value is needed for this field
If both `default` and `default_factory` are set, an error is raised.
:param alias: the public name of the field
:param title: can be any string, used in the schema
:param description: can be any string, used in the schema
:param exclude: exclude this field while dumping.
Takes same values as the ``include`` and ``exclude`` arguments on the ``.dict`` method.
:param include: include this field while dumping.
Takes same values as the ``include`` and ``exclude`` arguments on the ``.dict`` method.
:param const: this field is required and *must* take it's default value
:param gt: only applies to numbers, requires the field to be "greater than". The schema
will have an ``exclusiveMinimum`` validation keyword
:param ge: only applies to numbers, requires the field to be "greater than or equal to". The
schema will have a ``minimum`` validation keyword
:param lt: only applies to numbers, requires the field to be "less than". The schema
will have an ``exclusiveMaximum`` validation keyword
:param le: only applies to numbers, requires the field to be "less than or equal to". The
schema will have a ``maximum`` validation keyword
:param multiple_of: only applies to numbers, requires the field to be "a multiple of". The
schema will have a ``multipleOf`` validation keyword
:param allow_inf_nan: only applies to numbers, allows the field to be NaN or infinity (+inf or -inf),
which is a valid Python float. Default True, set to False for compatibility with JSON.
:param max_digits: only applies to Decimals, requires the field to have a maximum number
of digits within the decimal. It does not include a zero before the decimal point or trailing decimal zeroes.
:param decimal_places: only applies to Decimals, requires the field to have at most a number of decimal places
allowed. It does not include trailing decimal zeroes.
:param min_items: only applies to lists, requires the field to have a minimum number of
elements. The schema will have a ``minItems`` validation keyword
:param max_items: only applies to lists, requires the field to have a maximum number of
elements. The schema will have a ``maxItems`` validation keyword
:param unique_items: only applies to lists, requires the field not to have duplicated
elements. The schema will have a ``uniqueItems`` validation keyword
:param min_length: only applies to strings, requires the field to have a minimum length. The
schema will have a ``minLength`` validation keyword
:param max_length: only applies to strings, requires the field to have a maximum length. The
schema will have a ``maxLength`` validation keyword
:param allow_mutation: a boolean which defaults to True. When False, the field raises a TypeError if the field is
assigned on an instance. The BaseModel Config must set validate_assignment to True
:param regex: only applies to strings, requires the field match against a regular expression
pattern string. The schema will have a ``pattern`` validation keyword
:param discriminator: only useful with a (discriminated a.k.a. tagged) `Union` of sub models with a common field.
The `discriminator` is the name of this common field to shorten validation and improve generated schema
:param repr: show this field in the representation
:param **extra: any additional keyword arguments will be added as is to the schema
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:param field_name: name of the field for use in error messages
:param annotation: a type hint such as `str` or `Annotated[str, Field(..., min_length=5)]`
:param value: the field's assigned value
:param config: the model's config object
:return: the FieldInfo contained in the `annotation`, the value, or a new one from the config.
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Prepare the field but inspecting self.default, self.type_ etc.
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Prepare the mapping <discriminator key> -> <ModelField> and update `sub_fields`
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dd� | j �� D �}| �||d | j�\}}| j|||| j|d�S )Nc S s6 i | ]\}}|j r|t|j|jd |j|j|jd��qS )F)�funcr� � each_item�always� check_fields�skip_on_failure)r5 r r4 r� r6 r7 r8 )r� �kr� rH rH rK r s ���z/ModelField._create_sub_type.<locals>.<dictcomp>)r� r� r� r� r� )r� r� r� r� r� )rJ r� r� r r� r� rS rH rH rK r� s �
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and class validators. This method should be idempotent, e.g. it should be safe to call multiple times
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