This is mostly used in situations where you are writing units tests. Say you want to test a function that takes a large complex object, but only operates on a smaller set of its data. you can pass in a smaller object missing the un-required keys, but that will throw a type error. This is a simple way around that.
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This is mostly used in situations where you are writing units tests. Say you want to test a function that takes a large complex object, but only operates on a smaller set of its data. you can pass in a smaller object missing the un-required keys, but that will throw a type error. This is a simple way around that.