How do you get shymin in Pokemon indigo?

To obtain Shymin in Pokémon Indigo, you need to first complete specific in-game tasks that typically involve finding a special item or completing a quest related to the Pokémon. Once you have met the necessary criteria, you can access the area where Shymin appears, usually a specific location such as a hidden grove or special event area. Remember to check for any specific items or events required to trigger its encounter, as these can vary by version.