colour.hints.overload#

colour.hints.overload(func)[source]#

Decorator for overloaded functions/methods.

In a stub file, place two or more stub definitions for the same function in a row, each decorated with @overload.

For example:

@overload
def utf8(value: None) -> None: ...
@overload
def utf8(value: bytes) -> bytes: ...
@overload
def utf8(value: str) -> bytes: ...

In a non-stub file (i.e. a regular .py file), do the same but follow it with an implementation. The implementation should not be decorated with @overload:

@overload
def utf8(value: None) -> None: ...
@overload
def utf8(value: bytes) -> bytes: ...
@overload
def utf8(value: str) -> bytes: ...
def utf8(value):
    ...  # implementation goes here

The overloads for a function can be retrieved at runtime using the get_overloads() function.