def METHOD_NAME(self):
    src = {
        "AttributeDefinitions": [
            {"AttributeName": "string", "AttributeType": "S"},
        ],
        "TableName": "string",
        "KeySchema": [{"AttributeName": "string", "KeyType": "HASH"},],
        "TableStatus": "CREATING",
        "CreationDateTime": datetime.datetime(2015, 1, 1, 1, 1, 1, 1, None),
        "ProvisionedThroughput": {
            "LastIncreaseDateTime": datetime.datetime(2015, 1, 1, 1, 1, 1, 1, None),
            "LastDecreaseDateTime": datetime.datetime(2015, 1, 1, 1, 1, 1, 1, None),
            "NumberOfDecreasesToday": 123,
            "ReadCapacityUnits": 123,
            "WriteCapacityUnits": 123,
        },
        "TableSizeBytes": 123,
        "AnotherArray": [
            "One",
            "Two",
            "AnotherThing",
        ]
    }
    dest = {
        "attribute_definitions": [
            {"attribute_name": "string", "attribute_type": "S"},
        ],
        "table_name": "string",
        "key_schema": [{"attribute_name": "string", "key_type": "HASH"}],
        "table_status": "CREATING",
        "creation_date_time": datetime.datetime(2015, 1, 1, 1, 1, 1, 1, None),
        "provisioned_throughput": {
            "last_increase_date_time": datetime.datetime(
                2015, 1, 1, 1, 1, 1, 1, None
            ),
            "last_decrease_date_time": datetime.datetime(
                2015, 1, 1, 1, 1, 1, 1, None
            ),
            "number_of_decreases_today": 123,
            "read_capacity_units": 123,
            "write_capacity_units": 123,
        },
        "table_size_bytes": 123,
        "another_array": ["One", "Two", "AnotherThing"]
    }
    d = snake_keys(src)
    self.maxDiff = None
    self.assertEquals(d, dest)