in src/smolagents/_function_type_hints_utils.py [0:0]
def _parse_union_type(args: tuple[Any, ...]) -> dict:
subtypes = [_parse_type_hint(t) for t in args if t is not type(None)]
if len(subtypes) == 1:
# A single non-null type can be expressed directly
return_dict = subtypes[0]
elif all(isinstance(subtype["type"], str) for subtype in subtypes):
# A union of basic types can be expressed as a list in the schema
return_dict = {"type": sorted([subtype["type"] for subtype in subtypes])}
else:
# A union of more complex types requires "anyOf"
return_dict = {"anyOf": subtypes}
if type(None) in args:
return_dict["nullable"] = True
return return_dict