function viewOrimport { viewOr } from "https://deno.land/x/rambda@9.2.1/files/index.d.ts"; viewOr<Input, Output>(fallback: Output,lens: Lens<Input, Output>,input: Input,): OutputviewOr<Input, Output>(fallback: Output, lens: Lens<Input, Output>): (input: Input) => OutputType ParametersInputOutputParametersfallback: Outputlens: Lens<Input, Output>input: InputReturnsOutputType ParametersInputOutputParametersfallback: Outputlens: Lens<Input, Output>Returns(input: Input) => Output