@property<EOL><INDENT>def num_attachments(self):<DEDENT>
if exists(self.fs_attachment_container):<EOL><INDENT>return len(listdir(self.fs_attachment_container))<EOL><DEDENT>else:<EOL><INDENT>return <NUM_LIT:0><EOL><DEDENT>
returns the current number of uploaded attachments in the filesystem