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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_query_errors(self):
 """ Return a list of base-wise error observations for the query :returns: list of base-wise errors :rtype: list of HPA groups """

    if self._query_errors: return self._query_errors
    v = []
    for i in range(len(self._query_hpas)):
      v.append(self.get_query_error(i))
    return v