Tai.Venues.ProductStore.find_by_venue_symbol

You're seeing just the function find_by_venue_symbol, go back to Tai.Venues.ProductStore module for more information.
Link to this function

find_by_venue_symbol(arg)

Specs

find_by_venue_symbol({venue_id(), venue_symbol()}) ::
  {:ok, product()} | {:error, :not_found}