---
Hash (size=3 name='My simple hash'):
  Pair 0:
    Key:
      Symbol (size=1 encoding=US-ASCII): :a
    Value: Fixnum 0
  Pair 1:
    Key:
      Symbol (size=1 encoding=US-ASCII): :b
    Value: Fixnum 1
  Pair 2:
    Key:
      Symbol (size=1 encoding=US-ASCII): :c
    Value: Fixnum 2