def by_b2x_identity_user_flow_id(self,b2x_identity_user_flow_id: str) -> B2xIdentityUserFlowItemRequestBuilder:
        """
        Provides operations to manage the b2xUserFlows property of the microsoft.graph.identityContainer entity.
        param b2x_identity_user_flow_id: The unique identifier of b2xIdentityUserFlow
        Returns: B2xIdentityUserFlowItemRequestBuilder
        """
        if b2x_identity_user_flow_id is None:
            raise TypeError("b2x_identity_user_flow_id cannot be null.")
        from .item.b2x_identity_user_flow_item_request_builder import B2xIdentityUserFlowItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["b2xIdentityUserFlow%2Did"] = b2x_identity_user_flow_id
        return B2xIdentityUserFlowItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the b2xUserFlows property of the microsoft.graph.identityContainer entity.
        param b2x_identity_user_flow_id: The unique identifier of b2xIdentityUserFlow
        Returns: B2xIdentityUserFlowItemRequestBuilder
        
msgraph/generated/identity/b2x_user_flows/b2x_user_flows_request_builder.py