client/lib/wpcom-undocumented/lib/mailing-list.js
function MailingList( category, wpcom ) {
	if ( ! ( this instanceof MailingList ) ) {
		return new MailingList( category, wpcom );
	}

	this._category = category;
	this.wpcom = wpcom;
}
function MailingList( category, wpcom ) {
	if ( ! ( this instanceof MailingList ) ) {
		return new MailingList( category, wpcom );
	}

	this._category = category;
	this.wpcom = wpcom;
}
`MailingList` constructor.

@constructor
@param {WPCOM} wpcom
@public