Brook.Storage.Postgres.Query.postgres_get

You're seeing just the function postgres_get, go back to Brook.Storage.Postgres.Query module for more information.
Link to this function

postgres_get(conn, view_table, collection, key \\ nil)

View Source

Specs

postgres_get(
  conn(),
  schema_table(),
  Brook.view_collection(),
  Brook.view_key() | nil
) :: {:ok, [Brook.view_value()]} | {:error, Brook.reason()}