Create Attachment

Adds an attachment to a piece of content. This method only adds a newattachment. If you want to update an existing attachment, use[Create or update attachments](#api-content-id-child-attachment-put).Note, you must set a `X-Atlassian-Token: nocheck` header on the requestfor this method, otherwise it will be blocked. This protects against XSRFattacks, which is necessary as this method accepts multipart/form-data.The media type 'multipart/form-data' is defined in ...