def __init__(self, chunk_struct, debug_level=1):
        self._root_label = chunk_struct.label()
        self._pieces = chunk_struct[:]
        tags = [self._tag(tok) for tok in self._pieces]
        self._str = '<' + '><'.join(tags) + '>'
        self._debug = debug_level
Returns the coordinate transformation object.
dataset/ETHPy150Open nltk/nltk/nltk/chunk/regexp.py/ChunkString.__init__--crossover with--dataset/ETHPy150Open adieu/django-nonrel/django/contrib/gis/utils/layermapping.py/LayerMapping.coord_transform