MessagePart Event
Fired when a message part is retrieved from the server.
Syntax
gmail.on('MessagePart', listener: (e: {readonly id: string, readonly attachmentId: string, readonly filename: string, readonly contentType: string, readonly size: number, readonly data: string}) => void )
Remarks
The MessagePartList event is fired for each message part retrieved from the server when ListMessages or ListDrafts is called.