oldValue property
      
      dynamic
      get
      oldValue
      
    
    
Gets or sets the previous or old value that the property had. The default is null.
Implementation
_i2.dynamic get oldValue => _i4.getProperty(
      this,
      'oldValue',
    );
      
      set
      oldValue
      (dynamic value) 
      
    
    
    
Implementation
set oldValue(_i2.dynamic value) {
  _i4.setProperty(
    this,
    'oldValue',
    value,
  );
}