Lamina.Server.Impl.set_provider_config_change_callbacks

You're seeing just the function set_provider_config_change_callbacks, go back to Lamina.Server.Impl module for more information.
Link to this function

set_provider_config_change_callbacks(state)

Specs

set_provider_config_change_callbacks(Lamina.Server.State.t()) ::
  {:ok, Lamina.Server.State} | {:error, any()}

Call config_change/2 on all providers with a function which they can use to trigger refreshes.