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Chain Child Fields

The Chain rule is used to produce the values of each of its child fields. It starts with the first child field ,and as soon as it becomes exhausted it continues with the second child.

And so it goes, up to the last child field. The chain field is exhausted when the last child field becomes exhausted.

You can use a Chain rule for example to traverse multiple data file in sequence. Each file to traverse will be a child of the Chain rule.

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