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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_dataset(self, key, info):
 """Get the dataset refered to by `key`."""


        angles = self._get_coarse_dataset(key, info)
        if angles is None:
            return

        # Fill gaps at edges of swath
        darr = DataArray(angles, dims=['y', 'x'])
        darr = darr.bfill('x')
        darr = darr.ffill('x')
        angles = darr.data

        res = self.interpolate_angles(angles, key.resolution)

        proj = DataArray(res, dims=['y', 'x'])
        proj.attrs = info.copy()
        proj.attrs['units'] = 'degrees'
        proj.attrs['platform_name'] = self.platform_name
        return proj