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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 get_full_alias(self, query):
 """ Get the full alias given a search query. Args: query: The query this function performs searching on. Returns: The full alias (with the placeholders, if any). """

        if query in self.alias_table.sections():
            return query

        return next((section for section in self.alias_table.sections() if section.split()[0] == query), '')