def by_delegated_admin_customer_id(self,delegated_admin_customer_id: str) -> DelegatedAdminCustomerItemRequestBuilder:
        """
        Provides operations to manage the delegatedAdminCustomers property of the microsoft.graph.tenantRelationship entity.
        param delegated_admin_customer_id: The unique identifier of delegatedAdminCustomer
        Returns: DelegatedAdminCustomerItemRequestBuilder
        """
        if delegated_admin_customer_id is None:
            raise TypeError("delegated_admin_customer_id cannot be null.")
        from .item.delegated_admin_customer_item_request_builder import DelegatedAdminCustomerItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["delegatedAdminCustomer%2Did"] = delegated_admin_customer_id
        return DelegatedAdminCustomerItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the delegatedAdminCustomers property of the microsoft.graph.tenantRelationship entity.
        param delegated_admin_customer_id: The unique identifier of delegatedAdminCustomer
        Returns: DelegatedAdminCustomerItemRequestBuilder
        
msgraph/generated/tenant_relationships/delegated_admin_customers/delegated_admin_customers_request_builder.py