function types.isBooleanObject
          
Usage in Deno
import { types } from "node:util";
isBooleanObject(object: unknown): object is Boolean 
      Returns true if the value is a boolean object, e.g. created
by new Boolean().
util.types.isBooleanObject(false);  // Returns false
util.types.isBooleanObject(true);   // Returns false
util.types.isBooleanObject(new Boolean(false)); // Returns true
util.types.isBooleanObject(new Boolean(true));  // Returns true
util.types.isBooleanObject(Boolean(false)); // Returns false
util.types.isBooleanObject(Boolean(true));  // Returns false
object is Boolean