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    What is the principal difference between passing tens of parameters hidden in a struct and passing them explicitly? Commented Jul 13, 2017 at 8:03
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    @Ruslan Cohesion. Commented Jul 13, 2017 at 8:26
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    And you are more likely to refactor the function into smaller functions, since you can just pass along one parameter to the sub-functions instead of tens of parameters. And less risk of mixing up the parameters if you use positional arguments. Commented Jul 13, 2017 at 12:20
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    That's fine, but you have to ensure coherence in the Structs - make sure that the parameters grouped into a Struct are 'related'. You might use more than one Struct under some circumstances. Commented Jul 13, 2017 at 12:22
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    @abuzittingillifirca You do not get cohesion automatically. If the only justification for putting parameters in a struct is to pass them to a particular function, then the cohesion is probably illusory. Commented Jul 13, 2017 at 16:17