We have an automated process using the API that creates a folder structure and uploads PDFs to Content Server. Unfortunately, this proicess does not define the mime type so it's set as "application/octet-stream", which means that these documents are excluded from renditioning, since our rendition rule is set for PDFs and Content Server looks at the mime type to determine file type. Is there a way to define the mime type of a file while uploading using the API?