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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 annotate(self, framedata):
 """Annotates the processed axis with given annotations for the provided framedata. Args: framedata: The current frame number. """

        for artist in self.annotation_artists:
            artist.remove()
        self.annotation_artists = []
        for annotation in self.annotations:
            if annotation[2] > framedata:
                return
            if annotation[2] == framedata:
                pos = annotation[0:2]
                shape = self.annotations_default['shape']
                color = self.annotations_default['color']
                size = self.annotations_default['size']
                line = self.annotations_default['line']
                if len(annotation) > 3:
                    shape = annotation[3].get('shape', shape)
                    color = annotation[3].get('color', color)
                    size = annotation[3].get('size', size)
                    line = annotation[3].get('line', line)
                if shape == 'CIRC' and hasattr(size, '__len__'):
                    size = 30

                if not hasattr(color, '__len__'):
                    color = (color,) * 3

                if shape == 'RECT':
                    patch = patches.Rectangle((pos[0] - size[0] // 2,
                                               pos[1] - size[1] // 2),
                                              size[0], size[1], fill=False,
                                              lw=line, fc='none', ec=color)
                elif shape == 'CIRC':
                    patch = patches.CirclePolygon(pos, radius=size, fc='none',
                                                  ec=color, lw=line)
                self.annotation_artists.append(patch)
                self.axes_processed.add_artist(self.annotation_artists[-1])