import { ParameterDeclaration } from "https://deno.land/x/ts_morph@15.1.0/mod.ts";
Gets if it's optional.
x/ts_morph/mod.ts>ParameterDeclaration#isOptional
import { ParameterDeclaration } from "https://deno.land/x/ts_morph@15.1.0/mod.ts";
Gets if it's optional.