code: function ParamType(typeSpec) {
    this.requisition = typeSpec.requisition;
    this.isIncompleteName = typeSpec.isIncompleteName;
    this.stringifyProperty = 'name';
    this.neverForceAsync = true;
  }
docs: Select from the available commands.
  This is very similar to a SelectionType, however the level of hackery in
  SelectionType to make it handle Commands correctly was to high, so we
  simplified.
  If you are making changes to this code, you should check there too.