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