function viewOrimport { viewOr } from "https://dotland.deno.dev/x/rambda@9.4.1/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