Unsupported
GET /repos/{owner}/{repo}/importUAT - Get an import statusPUT /repos/{owner}/{repo}/importUAT - Start an importPATCH /repos/{owner}/{repo}/importUAT - Update an importDELETE /repos/{owner}/{repo}/importUAT - Cancel an importGET /repos/{owner}/{repo}/import/authorsUAT - Get commit authorsPATCH /repos/{owner}/{repo}/import/authors/{author_id}UAT - Map a commit authorGET /repos/{owner}/{repo}/import/large_filesUAT - Get large filesPATCH /repos/{owner}/{repo}/import/lfsUAT - Update Git LFS preference