Membrane.Bin.handle_spec_started

You're seeing just the callback handle_spec_started, go back to Membrane.Bin module for more information.
Link to this callback

handle_spec_started(children, context, state)

View Source (optional)

Specs

handle_spec_started(
  children :: [Membrane.Child.name_t()],
  context :: Membrane.Bin.CallbackContext.SpecStarted.t(),
  state :: state_t()
) :: callback_return_t()

Callback invoked when Membrane.ParentSpec is linked and in the same playback state as bin.

This callback can be started from handle_init/1 callback or as Membrane.Bin.Action.spec_t/0 action.