method
headers
filesToUpload
uploadUrl
property.jobId
files
files.mimeType
files.size
files.name
erroredFiles
erroredFiles.mimeType
erroredFiles.size
erroredFiles.name
succesfulFiles
succesfulFiles.mimeType
succesfulFiles.size
succesfulFiles.name
onFileUploadProgress
unknown
allFilesFailed
noFilesToUpload