protected function startLargeFile($fileName, $contentType, $bucketId)
    {
        $response = $this->generateAuthenticatedClient([
            'fileName'      => $fileName,
            'contentType'   => $contentType,
            'bucketId'      => $bucketId,
        ])->request('POST', '/b2_start_large_file');

        return $response;
    }
protected function startLargeFile($fileName, $contentType, $bucketId)
    {
        $response = $this->generateAuthenticatedClient([
            'fileName'      => $fileName,
            'contentType'   => $contentType,
            'bucketId'      => $bucketId,
        ])->request('POST', '/b2_start_large_file');

        return $response;
    }
protected function startLargeFile ( $ fileName , $ contentType , $ bucketId ) { $ response = $ this -> generateAuthenticatedClient ( [ 'fileName' => $ fileName , 'contentType' => $ contentType , 'bucketId' => $ bucketId , ] ) -> request ( 'POST' , '/b2_start_large_file' ) ; return $ response ; }
starts the large file upload process.

@param $fileName
@param $contentType
@param $bucketId

@throws GuzzleException

@return array
starts the large file upload process .