This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

flush 

        # IO.flush

(from ruby core)
---
    flush -> self

---

Flushes data buffered in `self` to the operating system (but does not
necessarily flush data buffered in the operating system):

    $stdout.print 'no newline' # Not necessarily flushed.
    $stdout.flush              # Flushed.

This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.