f property
      
      set
      f
      (num value) 
      
    
    
    
Implementation
set f(_i2.num value) {
  _i4.setProperty(
    this,
    'f',
    value,
  );
}set f(_i2.num value) {
  _i4.setProperty(
    this,
    'f',
    value,
  );
}