code: def get_meta(self, name, meta_key=None):
          '''Get the ``content`` attribute of a meta tag ``name``.
  
          For example::
  
              head.get_meta('decription')
  
          returns the ``content`` attribute of the meta tag with attribute
          ``name`` equal to ``description`` or ``None``.
          If a different meta key needs to be matched, it can be specified via
          the ``meta_key`` parameter::
  
              head.get_meta('og:title', meta_key='property')
          '''
          meta_key = meta_key or 'name'
          for child in self.meta._children:
              if isinstance(child, Html) and child.attr(meta_key) == name:
                  return child.attr('content'f get_meta(self, name, meta_key=None):
          '''Get the ``content`` attribute of a meta tag ``name``.
  
          For example::
  
              head.get_meta('decription')
  
          returns the ``content`` attribute of the meta tag with attribute
          ``name`` equal to ``description`` or ``None``.
          If a different meta key needs to be matched, it can be specified via
          the ``meta_key`` parameter::
  
              head.get_meta('og:title', meta_key='property')
          '''
          meta_key = meta_key or 'name'
          for child in self.meta._children:
              if isinstance(child, Html) and child.attr(meta_key) == name:
                  return child.attr('content')
docs: Get the ``content`` attribute of a meta tag ``name``.
  
          For example::
  
              head.get_meta('decription')
  
          returns the ``content`` attribute of the meta tag with attribute
          ``name`` equal to ``description`` or ``None``.
          If a different meta key needs to be matched, it can be specified via
          the ``meta_key`` parameter::
  
              head.get_meta('og:title', meta_key='property')