code: def a(self):
      return self._a
  
imports: import numpy
  from numpy.linalg import LinAlgError
  from ...None import opcodes
  from ...core import recursive_tile
  from ...serialization.serializables import BoolField, KeyField
  from ...utils import has_unknown_shape
  from ..array_utils import device, as_same_device, cp
  from ..operands import TensorOperand, TensorOperandMixin
  from ..datasource import tensor
  from ..utils import decide_unify_split
  from ..core import TensorOrder
label_desc: Use image node_id 2 for calling the TensorSolveTriangular obj's underlying member method code with example usage: obj.a() and returns: self