Returns the alternate name of a parameter.
        Only pipeline prompt-when-run parameters
        can have alternate names and alternate descriptions

def get_alt_name(self):
        """
        Returns the alternate name of a parameter.
        Only pipeline prompt-when-run parameters
        can have alternate names and alternate descriptions
        """
        if ('altName' in self.attributes and
                bool(self.attributes['altName'].strip())):
            return self.attributes['altName']
        else:
            return None