warning will be generated and nothing will be done.## S3 method for class 'BasicObject}(this, private=FALSE, pos=2, ...)':
attachundefined
- private{If
TRUE, private fields will also be attached,
    otherwise not.}
  - pos{The position at in search path where the BasicObject should be
             inserted.}
- ...{Not used.}
Returns TRUE if the BasicObject was attached, otherwise FALSE. 
[object Object]
*detach() and attach(), detach().
  For more information see BasicObject.programming 
methods 
internal 
methods