Constant PROCESS_ERROR_FILE_BRIDGE 

pub const PROCESS_ERROR_FILE_BRIDGE: for<'a> fn(&'a BatchFileTriple, &'a [BatchErrorFileProcessingOperation]) -> Pin<Box<dyn Future<Output = Result<(), BatchErrorProcessingError>> + Send + 'a>> = process_error_file_bridge_fn; // {batch_mode_process_response::process_error_file::process_error_file_bridge_fn as for<'a> fn(&'a batch_mode::BatchFileTriple, &'a [batch_mode::BatchErrorFileProcessingOperation]) -> std::pin::Pin<std::boxed::Box<(dyn futures::Future<Output = std::result::Result<(), batch_mode::BatchErrorProcessingError>> + std::marker::Send + 'a)>>}

We expose a CONST of type BatchWorkflowProcessErrorFileFn, so passing &PROCESS_ERROR_FILE_BRIDGE exactly matches the trait’s needed function pointer type.