async fn derive_resource_data_arg_file_arg_or_stdin<Type: FHIRJSONDeserializer>(
data_arg: &Option<String>,
file_path: &Option<String>,
) -> Result<Type, OperationOutcomeError>async fn derive_resource_data_arg_file_arg_or_stdin<Type: FHIRJSONDeserializer>(
data_arg: &Option<String>,
file_path: &Option<String>,
) -> Result<Type, OperationOutcomeError>