Data source object for api operation

it would be helpful to have an Date Source for azurerm_api_management_api_operation, because, when you import an api Definition over i.E. openapi v3, the api operations will be created by this. Know if i want to add a policy to the api operation i need a Data Source for this or the operation must be defined in the code, but this is not possible, because the oparation is already created by the import of the api definition.