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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def build_link(href, text, cls=None, icon_class=None, **attrs):
 """Builds an html link. :param href: link for the anchor element :param text: text for the anchor element :param attrs: other attribute kwargs u'<a href="xyz.com" class="big">hello</a>' u'<a href="xyz.com" class="big"><i class="fa fa-times"></i> hello</a>' """

    return build_html_element(tag='a',
                              text=text,
                              href=href,
                              cls=cls,
                              icon_class=icon_class,
                              **attrs)