function assertimport { assert } from "https://dotland.deno.dev/x/fresh_seo@1.0.1/src/deps.ts"; assert(expr: unknown, msg?): asserts exprMake an assertion, error will be thrown if expr does not have truthy value. Parametersexpr: unknownoptionalmsg = [UNSUPPORTED]Returnsasserts exprimport assertimport { assert } from "https://dotland.deno.dev/x/fresh_seo@1.0.1/src/deps.ts";