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Everything you need to know about NexoPOS.
This section describes how the filters are used on NexoPOS 4. The hook system is based on the WordPress hooks system. Mainly NexoPOS uses the filter to allow mutating values like string, number, and anything that can't be passed by reference.
Let's consider the following example. By default, we only accept certain file types on NexoPOS. However, you might want your module to change that behavior, you'll then use the declared filter to add our custom file type.
The same approach can be used to remove existing mimes.