Code.get_docs

You're seeing just the function get_docs, go back to Code module for more information.
This function is deprecated. Code.get_docs/2 always returns nil as its outdated documentation is no longer stored on BEAM files. Use Code.fetch_docs/1 instead.

Specs

get_docs(module(), :moduledoc | :docs | :callback_docs | :type_docs | :all) ::
  nil

Deprecated function to retrieve old documentation format.

Elixir v1.7 adopts EEP 48 which is a new documentation format meant to be shared across all BEAM languages. The old format, used by Code.get_docs/2, is no longer available, and therefore this function always returns nil. Use Code.fetch_docs/1 instead.