lib/g5_authentication_client/client.rb
def list_users
      response=oauth_access_token.get("/v1/users")
      response.parsed.collect { |parsed_user| User.new(parsed_user) }
    end
def list_users
      response=oauth_access_token.get("/v1/users")
      response.parsed.collect { |parsed_user| User.new(parsed_user) }
    end
Return all users from the remote service
 @return [Array<G5AuthenticationClient::User>]