Telegex.get_chat_member

You're seeing just the function get_chat_member, go back to Telegex module for more information.
Link to this function

get_chat_member(chat_id, user_id)

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Specs

get_chat_member(integer() | String.t(), integer()) ::
  {:ok, Telegex.Model.ChatMember.t()} | {:error, Telegex.Model.errors()}

Use this method to get information about a member of a chat. Returns a Telegex.Model.ChatMember object on success.