def by_user_id(self,user_id: str) -> UserItemRequestBuilder:
        """
        Provides operations to manage the assignedUsers property of the microsoft.graph.cloudPcProvisioningPolicyAssignment entity.
        param user_id: The unique identifier of user
        Returns: UserItemRequestBuilder
        """
        if user_id is None:
            raise TypeError("user_id cannot be null.")
        from .item.user_item_request_builder import UserItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["user%2Did"] = user_id
        return UserItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the assignedUsers property of the microsoft.graph.cloudPcProvisioningPolicyAssignment entity.
        param user_id: The unique identifier of user
        Returns: UserItemRequestBuilder
        
msgraph/generated/device_management/virtual_endpoint/provisioning_policies/item/assignments/item/assigned_users/assigned_users_request_builder.py