placardMM property

Map<String, Map<String, String>> placardMM
getter/setter pair

Other alternatives to main #actor.

Implementation

//
//  NOTE  First record:  'FirstActor'
Map<String, Map<String, String>> placardMM = {
  'FirstActor': {
    'actor': 'first',
    'sender': 'fS',
    'receiver': 'fR',
    'command': 'fC',
    'msg': 'fMsg'
  }
};