>>> insight.set_attach_rules(AttachmentRules(
...     max_size=1*1024*1024,
...     max_attach_count=25,
...     max_filename_len=32,
...     invalid_filename_chars=['/', r'', ' '],
...     max_description_len=128,
... ))		

1. Used to change the rules that are applied to new attachments - for example, if you want to test how your code responds to the AttachStatus.TOO_MANY error code without actually creating a lot of attachments, you can use this procedure to set a lower number of attachments per scenario.

2. Setting this property when insight.test_mode is False will cause the model to abort with a runtime error.