Function isComputedSignal

packages/fresh/src/runtime/server/preact_hooks.ts:598–602

(x: any)

// deno-lint-ignore no-explicit-any
function isComputedSignal(x: any): x is ReadonlySignal {
  return isSignal(x) &&
    (("x" in x && typeof x.x === "function") ||
      "_fn" in x && typeof x._fn === "function");
}

// deno-lint-ignore no-explicit-any
function isVNode(x: any): x is VNode {