ElixirLS and GenServer handlers

I have a GenServer with an API function:

  def api_exit do
    GenServer.cast(@proc_name, :exit)
  end

And a matching handler:

def handle_cast(:exit, state) do 
  # some logic here 
  {:noreply, newstate}
end 

Running in Neovim, ElixirLS beautifully navigates to the API function.

But I don’t know of a way to auto-navigate to the handler. Is this even possible with LSP? Are there tricks or best practices to quickly jump to a particular handler?

PS I put a unique prefix on every request term (eg :exit → :msg_exit) in the API and handlers. With that, Neovim # and * keys will quickly pop between matching functions. Still curious if there is an LSP way to jump to a handler signature, or other tricks that people may have…