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Adding support for enums in transform_schema (structured outputs) #1178

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Adding support for enums in transform_schema (structured outputs) #1178

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11 changes: 9 additions & 2 deletions src/anthropic/lib/_parse/_transform.py
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Original file line number Diff line number Diff line change
Expand Up @@ -94,19 +94,26 @@ def transform_schema(
strict_defs[name] = transform_schema(schema)

type_: Optional[SupportedTypes] = json_schema.pop("type", None)
enum = json_schema.pop("enum", None)
any_of = json_schema.pop("anyOf", None)
one_of = json_schema.pop("oneOf", None)
all_of = json_schema.pop("allOf", None)

if is_list(any_of):
if is_list(enum):
strict_schema["enum"] = [
variant if isinstance(variant, str | int | float | bool) else transform_schema(cast("dict[str, Any]", variant)) for variant in enum
]
elif is_list(any_of):
strict_schema["anyOf"] = [transform_schema(cast("dict[str, Any]", variant)) for variant in any_of]
elif is_list(one_of):
strict_schema["anyOf"] = [transform_schema(cast("dict[str, Any]", variant)) for variant in one_of]
elif is_list(all_of):
strict_schema["allOf"] = [transform_schema(cast("dict[str, Any]", variant)) for variant in all_of]
else:
if type_ is None:
raise ValueError("Schema must have a 'type', 'anyOf', 'oneOf', or 'allOf' field.")
raise ValueError(
"Schema must have a 'type', 'enum', 'anyOf', 'oneOf', or 'allOf' field."
)

strict_schema["type"] = type_

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