The document discusses how to dynamically set file connector attributes at runtime in Mule. It provides an example where a JSON file specifies a folder, file pattern, and work directory. The Mule flow reads the file, parses the JSON to extract these values, and then sets them as attributes on the file outbound endpoint to dispatch the file dynamically based on the values in the JSON file. This demonstrates how Mule allows configuring connectors dynamically rather than just at design time.