Map(Range(5), {A: it, B: "A" & ToText(it)})
[{'lowercase': "value1", 'MixedCase': "value2",'UPPERCASE': "value3"}]
[{TupleField: ("A", 1)}, {TupleField: ("B", 2)}]
[({RecordInTuple: 1}, "A"), ({RecordInTuple: 2}, "B")]
[{RecordWithSequence: [1, 2]}, {RecordWithSequence: []}, {RecordWithSequence: null}]

// Fields that need escaping.
[{ 'A"B': "hello" }]
[{ 'A\u0001B': "hello" }]
