TupleKey constructor

TupleKey(
  1. String key1, [
  2. String? key2,
  3. String? key3
])

Implementation

TupleKey(String key1, [String? key2, String? key3])
    : parts = [
        key1,
        if (key2 != null) key2,
        if (key3 != null) key3,
      ];