def by_unified_role_management_policy_id(self,unified_role_management_policy_id: str) -> UnifiedRoleManagementPolicyItemRequestBuilder:
        """
        Provides operations to manage the roleManagementPolicies property of the microsoft.graph.policyRoot entity.
        param unified_role_management_policy_id: The unique identifier of unifiedRoleManagementPolicy
        Returns: UnifiedRoleManagementPolicyItemRequestBuilder
        """
        if unified_role_management_policy_id is None:
            raise TypeError("unified_role_management_policy_id cannot be null.")
        from .item.unified_role_management_policy_item_request_builder import UnifiedRoleManagementPolicyItemRequestBuilder

        url_tpl_params = get_path_parameters(self.path_parameters)
        url_tpl_params["unifiedRoleManagementPolicy%2Did"] = unified_role_management_policy_id
        return UnifiedRoleManagementPolicyItemRequestBuilder(self.request_adapter, url_tpl_params)

        Provides operations to manage the roleManagementPolicies property of the microsoft.graph.policyRoot entity.
        param unified_role_management_policy_id: The unique identifier of unifiedRoleManagementPolicy
        Returns: UnifiedRoleManagementPolicyItemRequestBuilder
        
msgraph/generated/policies/role_management_policies/role_management_policies_request_builder.py