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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 isOpeningTag(self):
 """ Detect whether this tag is opening or not. Returns: bool: True if it is opening. """

        if self.isTag() and \
           not self.isComment() and \
           not self.isEndTag() and \
           not self.isNonPairTag():
            return True

        return False