Resolves to the current status of a permission.

  const status = await Deno.permissions.query({ name: "read", path: "/etc" });
  if (status.state === "granted") {
    data = await Deno.readFile("/etc/passwd");
  }

Requests the permission, and resolves to the state of the permission.

  const status = await Deno.permissions.request({ name: "env" });
  if (status.state === "granted") {
    console.log(Deno.homeDir());
  } else {
    console.log("'env' permission is denied.");
  }

Revokes a permission, and resolves to the state of the permission.

  const status = await Deno.permissions.revoke({ name: "run" });
  assert(status.state !== "granted")