code: def p_pkg_home_1(self, p):
          
          try:
              self.builder.set_pkg_down_location(self.document, p[2])
          except OrderError:
              self.order_error('PackageHomePage', 'PackageName', p.lineno(1))
          except CardinalityError:
              self.more_than_one_error('PackageHomePage', p.lineno(1))
docs: pkg_home : PKG_HOME pkg_home_value