Copies the specified object as a part of a multipart upload.
public func copyPart(srcObjectName: String, destBucket: String, destObjectName: String, destPartNumber: Int32, destUploadId: String) throws -> Void
This method copies data from the object specified by SrcObjectName (in the bucket currently selected by Bucket) to a new multipart upload part for DestObjectName in DestBucket.
The DestPartNumber and DestUploadId parameters should be used in the same manner as the UploadPart method's PartNumber and UploadId parameters.
To copy a specific range of bytes from the source object, set the CopyPartRange configuration setting before calling this method.
Note: This method is not supported when ServiceProvider is spGoogleStorage (2); Google Cloud Storage does not support multipart uploads.