code: def getPermanence(self, columnIndex, permanence):
      
      assert(columnIndex < self._numColumns)
      permanence[:] = self._permanences[columnIndex]
docs: Returns the permanence values for a given column. ``permanence`` size
      must match the number of inputs.
      
      :param columnIndex: (int) column index to get permanence for.
      :param permanence: (list) will be overwritten with permanences.