anchor.diff:    Integer times([Integer other]) => new Integer(this._value * other._value);
   
     Integer get negated => new Integer(-this._value);
  +  Integer get magnitude => new Integer(this._value.abs());
     Integer minus([Integer other]) => new Integer(this._value - other._value);
   
     Integer plus([Integer other]) => new Integer(this._value + other._value);
  
positive.code: // Array.dart
  //
  
  class Array extends impl$BaseList {
    $dart$core.List _list;
  
  
negative.code:     return false;
    }
  
    $dart$core.int get hashCode => _value.hashCode;
  
    // Comparable
    Comparison compare([Float other])
        =>  _value < other._value ? smaller : (_value > other._value ? larger : equal);
  