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from __future__ import annotations
from dataclasses import dataclass
from typing import TYPE_CHECKING
from litestar.openapi.spec.base import BaseSchemaObject
if TYPE_CHECKING:
from litestar.openapi.spec.header import OpenAPIHeader
from litestar.openapi.spec.reference import Reference
__all__ = ("Encoding",)
@dataclass
class Encoding(BaseSchemaObject):
"""A single encoding definition applied to a single schema property."""
content_type: str | None = None
"""The Content-Type for encoding a specific property. Default value depends n the property type:
- for ``object``: ``application/json``
- for ``array``: the default is defined based on the inner type
- for all other cases the default is ``application/octet-stream``.
The value can be a specific media type (e.g. ``application/json``), a wildcard media type (e.g. ``image/*``), or a
comma-separated list of the two types.
"""
headers: dict[str, OpenAPIHeader | Reference] | None = None
"""A map allowing additional information to be provided as headers, for example ``Content-Disposition``.
``Content-Type`` is described separately and SHALL be ignored in this section. This property SHALL be ignored if the
request body media type is not a ``multipart``.
"""
style: str | None = None
"""Describes how a specific property value will be serialized depending on its type.
See `Parameter Object <https://spec.openapis.org/oas/v3.1.0#parameterObject>`_ for details on the
`style <https://spec.openapis.org/oas/v3.1.0#parameterStyle>`__ property. The behavior follows the same values as
``query`` parameters, including default values. This property SHALL be ignored if the request body media type is not
``application/x-www-form-urlencoded`` or ``multipart/form-data``. If a value is explicitly defined, then the value
of `contentType <https://spec.openapis.org/oas/v3.1.0#encodingContentType>`_ (implicit or explicit) SHALL be
ignored.
"""
explode: bool = False
"""When this is true, property values of type ``array`` or ``object`` generate separate parameters for each value of
the array, or key-value-pair of the map.
For other types of properties this property has no effect. When
`style <https://spec.openapis.org/oas/v3.1.0#encodingStyle>`_ is ``form``, the default value is ``True``. For all
other styles, the default value is ``False``. This property SHALL be ignored if the request body media type is not
``application/x-www-form-urlencoded`` or ``multipart/form-data``. If a value is explicitly defined, then the value
of `contentType <https://spec.openapis.org/oas/v3.1.0#encodingContentType>`_ (implicit or explicit) SHALL be
ignored.
"""
allow_reserved: bool = False
"""Determines whether the parameter value SHOULD allow reserved characters, as defined by :rfc:`3986`
(``:/?#[]@!$&'()*+,;=``) to be included without percent-encoding.
This property SHALL be ignored if the request body media type s not ``application/x-www-form-urlencoded`` or
``multipart/form-data``. If a value is explicitly defined, then the value of
`contentType <https://spec.openapis.org/oas/v3.1.0#encodingContentType>`_ (implicit or explicit) SHALL be ignored.
"""
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