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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 match(self, node, results=None):
 """ Does this pattern exactly match a node? Returns True if it matches, False if not. If results is not None, it must be a dict which will be updated with the nodes matching named subpatterns. Default implementation for non-wildcard patterns. """

        if self.type is not None and node.type != self.type:
            return False
        if self.content is not None:
            r = None
            if results is not None:
                r = {}
            if not self._submatch(node, r):
                return False
            if r:
                results.update(r)
        if results is not None and self.name:
            results[self.name] = node
        return True