{'mapping': {'nested': {'deep': {'value': 1}}},
 'sequence': ['one', 'two', 'three'],
 'sequence_of_mappings': [{'name': 'alice', 'age': 30, 'roles': ['admin', 'user']},
                          {'name': 'bob', 'age': 25}],
 'mapping_of_sequences': {'fruits': ['apple', 'banana'], 'veggies': ['carrot']},
 'nested_sequences': [[1, 2], [3, 4]],
 'mixed': {'servers': [{'host': 'web1', 'ports': [80, 443]},
                       {'host': 'web2', 'ports': [8080]}]}}