--- OpenStruct (message='My simple struct'): Member 0: Name: Symbol: to_s: a size: 1 encoding: !ruby/encoding US-ASCII Value: Fixnum 0 Member 1: Name: Symbol: to_s: b size: 1 encoding: !ruby/encoding US-ASCII Value: Fixnum 1 Member 2: Name: Symbol: to_s: c size: 1 encoding: !ruby/encoding US-ASCII Value: Fixnum 2