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This constructor cannot be used in null-safe code. Use [List.filled] to create a non-empty list.

### Declare

var foo = List<int>();  // Now error
var bar = List<int>(n); // Now error
var baz = List<int>(0); // Now error


##### Use these
var foo = <int>[];           // Always the recommended way.
var bar = List.filled(1, 0); // Not filled with `null`s.
var baz = List<int>.empty();
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