It might be required for you to import the package if you encounter any issues (like casting an Array), so better be safe than sorry and add the import at the very top of the file.
Creates a new Rarity with the given name and given color.
Returns: A new Rarity with the given name and color
Return Type: Rarity
// Rarity.create(name as string, formatting as TextFormatting) as Rarity Rarity.create("insanely epic", <formatting:obfucated>);
Gets the color of this Rarity
Return Type: TextFormatting
// Rarity.color() as TextFormatting myRarity.color();