úÎ r (     Safe345ÕA function argument that has a  valueThe 5 function takes a default value, a function, and an  value. If the  value is g, the function returns the default value. Otherwise, it applies the function to the value inside the  and returns the result.The ' function takes a default value and an  value. If the  is R, it returns the default value; otherwise, it returns the value contained in the . Convert an  value into an instance of .     )optional-args-1.0.2-s8wO6PQfTnDlopg07Senp Data.OptionalbaseGHC.BasepureemptyOptionalDefaultSpecificoptional defaultTo fromOptional$fFractionalOptional $fNumOptional$fIsStringOptional$fMonoidOptional$fSemigroupOptional$fMonadPlusOptional$fAlternativeOptional$fMonadOptional$fApplicativeOptional $fEqOptional$fFunctorOptional$fFoldableOptional$fTraversableOptional$fShowOptional Alternative