// chained comprehensions
				"self.mapOfMap.map(k, k).map(k, k).size() == 1":      32,
				"self.mapOfListMap.map(k, k).map(k, k).size() == 1":  32,
				"self.mapOfList.map(k, k).map(k, k).size() == 1":     32,
				"self.listOfMap.map(e, e).map(e, e).size() == 1":     32,
				"self.listOfListMap.map(e, e).map(e, e).size() == 1": 32,

				// nested comprehensions

			},
		},
		{name: "container type composition",
			obj: map[string]interface{}{
				"obj": map[string]interface{}{
					"field": "a",
				},
				"mapOfMap": map[string]interface{}{
					"x": map[string]interface{}{
						"y": "b",
					},
				},
				"mapOfObj": map[string]interface{}{
					"k": map[string]interface{}{
						"field2": "c",
					},