code: def lowerBound(self):
      return self._lowerBound
  
imports: from ...None import _MINIMUM_FLEXIBLE_SHAPES_SPEC_VERSION, _MINIMUM_NDARRAY_SPEC_VERSION
  from ..utils import _get_feature
label_desc: Use image node_id 2 for calling the ShapeRange obj's underlying member method code with example usage: obj.lowerBound() and returns: self