Integrated AWS S3 into the project to store all attachments, including files obtained beyond the attachments model, in an AWS bucket and files can be downloaded also.
Specified AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_STORAGE_BUCKET_NAME in .env file.
Updated requirements.txt to include dependencies necessary for this integration.
Also, I have changed models.py of attachments app as in this the attachment upload function was not taking input and showing the error as content_object is None. So i modified it with a if else condition to check my integration.