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Returns just the keys of an object as a plain list, throwing away the values. Use this when you care about which fields are present rather than what they contain, for example to produce a list of the attribute names on a product, or to feed the key names into a later step. The result is a numbered list of the key names, in the order they appeared in the object.

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Fields

This mapper has no settings. Point it at the object whose keys you want and it transforms whatever value it receives.

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Sample data

Input: 
{ "attributes": { "color": "red", "size": "M", "material": "cotton" } }
Output: 
{ "attributes": ["color", "size", "material"] }