unstructured

69edffb0 - bug: update partition_msg and partition_email so attachments also receive metadata_last_modified kwarg (#1134)

bug: update partition_msg and partition_email so attachments also receive metadata_last_modified kwarg (#1134) ### Summary Closes #1027 The msg test in question was no longer failing after removing the quick-fix and comment explaining the issue. However, the test was not functioning as intended. Test was refactored to appropriately test `metadata_last_modified` of attachments. `partition_msg` was then updated to pass `metadata_last_modified` to `attachment_partitioner`. The same was done for email partitioning. ### Testing ``` from unstructured.partition.text import partition_text from unstructured.partition.msg import partition_msg from unstructured.partition.email import partition_email filename="example-docs/fake-email-attachment.msg" elements = partition_msg(filename=filename, attachment_partitioner=partition_text, process_attachments=True, metadata_last_modified="0000-00-00") # previously, these were different values because last_modified wasn't being updated in attachments elements[1].metadata.last_modified elements[-1].text elements[-1].metadata.last_modified email_filename="example-docs/eml/fake-email-attachment.eml" email_elements = partition_email(filename=email_filename, attachment_partitioner=partition_text, process_attachments=True, metadata_last_modified="0000-00-00") email_elements[1].metadata.last_modified email_elements[-1].text email_elements[-1].metadata.last_modified ```