Warning found:
in module Main
at tests/purs/warning/2542.purs:16:1 - 16:18 (line 16, column 1 - line 16, column 18)

  No type declaration was provided for the top-level declaration of main.
  It is good practice to provide type declarations as a form of documentation.
  The inferred type of main was:
               
    Effect Unit
               

in value declaration main

See https://github.com/purescript/documentation/blob/master/errors/MissingTypeDeclaration.md for more information,
or to contribute content related to this warning.