Attachment

- (string) filename - The name of the file.

- (height) filesize - The size of the file.

- (number) height - The height of the file (if it is an image).

- (string) id - The attachment's id.

- (string) proxyURL - Proxy url to this attachment.

- (string) url - The file's url.

- (number) width - The width of the file (if it is an image).