Callback container that forwards events to each registered callback.
Summary
Types
@type t() :: %GEPA.Callbacks.Composite{callbacks: [GEPA.Callbacks.callback()]}
Functions
@spec add(t(), GEPA.Callbacks.callback()) :: t()
Return a composite with one callback appended.
@spec new([GEPA.Callbacks.callback()]) :: t()
Create a composite callback.