Warning found: in module Main at tests/purs/warning/ScopeShadowing2.purs:7:1 - 7:22 (line 7, column 1 - line 7, column 22) Shadowed definitions are in scope for value append from the following open imports: import Data.Semigroup These will be ignored and the local declaration will be used. See https://github.com/purescript/documentation/blob/master/errors/ScopeShadowing.md for more information, or to contribute content related to this warning.