Pushes the current indentation state of the Verbose object
Pushes the current indentation state of the Verbose object, which is controlled by
*exit(). By pushing the state when entering a function and
on.exit() to pop the state, the correct state will
set regardless of if the functions returned naturally or via an error.
## S3 method for class 'Verbose': pushState(this, ...)
- Not used.
- Returns (invisibly)
For more information see