faasr_delete_file       Delete a file from local storage
faasr_get_file          Get (download) a file from local storage
faasr_get_folder_list   List files in local storage with optional
                        prefix
faasr_invocation_id     Get the invocation ID for the current workflow
faasr_log               Append a log message to local logs
faasr_put_file          Put (upload) a file to local storage
faasr_rank              Get current rank information for the executing
                        function
faasr_test              FaaSr test execution
