copy method
Implementation
Future<void> copy(FileLocation source, String destination, {bool overwrite = false}) =>
_action(destination, 'copy', {'source': source.toJson(), 'overwrite': overwrite});
Future<void> copy(FileLocation source, String destination, {bool overwrite = false}) =>
_action(destination, 'copy', {'source': source.toJson(), 'overwrite': overwrite});