void (@NotNull PyReferenceExpression source, @NotNull PyReferenceExpression target) { target.putCopyableUserData(ENCODED_IMPORT, source.getCopyableUserData(ENCODED_IMPORT)); target.putCopyableUserData(ENCODED_IMPORT_AS, source.getCopyableUserData(ENCODED_IMPORT_AS)); target.putCopyableUserData(ENCODED_USE_FROM_IMPORT, source.getCopyableUserData(ENCODED_USE_FROM_IMPORT)); source.putCopyableUserData(ENCODED_IMPORT, null); source.putCopyableUserData(ENCODED_IMPORT_AS, null); source.putCopyableUserData(ENCODED_USE_FROM_IMPORT, null); }