def has_param(param):
    """
    Generate function, which will check `param` is in html element.

    This function can be used as parameter for .find() method in HTMLElement.
    """
    def has_param_closure(element):
        """
        Look for `param` in `element`.
        """
        if element.params.get(param, "").strip():
            return True

        return False

    return has_param_closure