Gradual typing gives you the option. You can be as statically typed as you want. Dart is gradually typed. So when I'm writing some flutter code, I may not know

Gradual typing gives you the option. You can be as statically typed as you want. Dart is gradually typed. So when I'm writing some flutter code, I may not know when types I need in the moment, I can omit type signatures until I work that out then write my types and go back to update the code.