msgpart:text — The entire message body part is replaced by the supplied text
msgpart:text(value, type, charset);
value: string type: string, optional charset: string, optional
This function has the same semantics and purpose as the Message equivalent (see msg:text), except that it is scoped to the message part currently being referenced instead of the entire message.
This function does not always return a string. It can return
nil on message parts where there is no body content.
In the current design, this function applies encoding and MIME headers but does not dot stuff .
Enable this function with the statement