code: function BlindTransfer(channel, context, extension) {
    BlindTransfer.super_.call(this, 'BlindTransfer');
    this.set('Channel', channel);
    this.set('Context', context);
    this.set('Exten', extension);
  }
docs: BlindTransfer Action.
  @constructor
  @see Action(String)
  @see https://wiki.asterisk.org/wiki/display/AST/Asterisk+12+ManagerAction_BlindTransfer
  @param {String} Source channel that wants to transfer the target channel.
  @param {String} Context to transfer the target channel to.
  @param {String} Extension inside the context to transfer the target channel to.
  @augments Action