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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 attach(self, image_in, sampler=None, show=True):
 """Attaches the relevant cross-sections to each axis. Parameters attach_image : ndarray The image to be attached to the collage, once it is created. Must be atleast 3d. sampler : str or list or callable selection strategy: to identify the type of sampling done to select the slices to return. All sampling is done between the first and last non-empty slice in that view/dimension. - if 'linear' : linearly spaced slices - if list, it is treated as set of percentages at which slices to be sampled (must be in the range of [1-100], not [0-1]). This could be used to more/all slices in the middle e.g. range(40, 60, 5) or at the end e.g. [ 5, 10, 15, 85, 90, 95] - if callable, it must take a 2D image of arbitray size, return True/False to indicate whether to select that slice or not. Only non-empty slices (atleas one non-zero voxel) are provided as input. Simple examples for callable could be based on 1) percentage of non-zero voxels > x etc 2) presence of desired texture ? 3) certain properties of distribution (skewe: dark/bright, energy etc) etc If the sampler returns more than requested `num_slices`, only the first num_slices will be selected. show : bool Flag to request immediate display of collage """


        if len(image_in.shape) < 3:
            raise ValueError('Image must be atleast 3D')

        # allowing the choice of new sampling for different invocations.
        if sampler is None:
            temp_sampler = self.sampler
        else:
            temp_sampler = sampler

        slicer = SlicePicker(image_in=image_in,
                             view_set=self.view_set,
                             num_slices=self.num_slices,
                             sampler=temp_sampler)

        try:
            for img_obj, slice_data in zip(self.images, slicer.get_slices()):
                img_obj.set_data(slice_data)
        except:
            self._data_attached = False
            raise ValueError('unable to attach the given image data to current collage')
        else:
            self._data_attached = True

        # show all the axes
        if show:
            self.show()