An interesting side effect is that it runs the code inside the module you import, so that code can act based on whether it gets imported by help or not: https:

An interesting side effect is that it runs the code inside the module you import, so that code can act based on whether it gets imported by help or not: https://tio.run/##VY6/DoIwEMb3PsUXl6ODLK7ETVcfwBhylBqIpW1KB3n6eqDRuF1@37/reB5KMZzRNDhdzjjiHkIdFzVOMaSMnNjYjs1DxTT6XNFgXSSMHtc5C26ts1PtebISTPix1fIN1/a53rnd9ErfwL7H1lXJnoZh52xPkAoSgPe6EK3kK6XikofgD9gb0OczsdG/sNXthO80lfIC https://tio.run/##VY6/DoIwEMb3PsUXl6ODLK7ETVcfwBhylBqIpW1KB3...