import * as rimbu from "https://deno.land/x/rimbu@0.14.1/common/err.ts"; NamespacesNErrBaseClassescErrBase.CustomErrorabstractA custom error instance. cErrBase.ForcedErrorFunctionsfErrThrows an Err.ForcedError error when called. fErrBase.msgReturns a function that, when called, throws an Err.ForcedError with the given message string.