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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 _read_bands(self):
 """ Reads a band with rasterio """

        bands = []

        try:
            for i, band in enumerate(self.bands):
                bands.append(rasterio.open(self.bands_path[i]).read_band(1))
        except IOError as e:
            exit(e.message, 1)

        return bands