Tai.VenueAdapters.Gdax.Stream.Connection.start_link

You're seeing just the function start_link, go back to Tai.VenueAdapters.Gdax.Stream.Connection module for more information.
Link to this function

start_link(list)

Specs

start_link(
  endpoint: String.t(),
  stream: venue_id(),
  credential: {credential_id(), credential()} | nil
) :: {:ok, pid()} | {:error, term()}