How to bulk upload parts along with Attachments and access the attachment data in BML

Summary:

For Parts we have the option to attach Files instead of manually going to each and uploading the file can we do a bulk upload? From query, we can access Parts fields how to access the file attachment in BML

Content (required):

For Parts we have the option to attach Files instead of manually going to each and uploading the file can we do a bulk upload? From query, we can access Parts fields how to access the file attachment in BML

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