### Prerequisites - [x] I checked the [documentation](https://fetch.ai/docs) and made sure this feature does not already exist - [x] I checked the [existing issues](https://github.com/fetchai/uAgents/issues) to make sure this feature has not already been requested ### Feature Document how to allow your agent using Chat Protocol to accept structured inputs such as: - Raw JSON - PDFs - Images ### Additional Information (Optional) _No response_