def find_user
      raise CredentialsMissing if client.nil?
      resp = do_authenticated_request(:get, "/user/details")
      raise resp if resp.is_a? String
      resp
    end
def find_user
      raise CredentialsMissing if client.nil?
      resp = do_authenticated_request(:get, "/user/details")
      raise resp if resp.is_a? String
      resp
    end
Get the user which represented by the Rosemary::Client

 @return: [Rosemary::User] user the user authenticated using the current client