code: def execute(cls, ctx, op):
      inp = ctx[op.input.key]
      out = op.outputs[0]
      result = getattr(inp.str, op.method)(
          *op.method_args, **op.method_kwargs
      )
      if result.ndim == 2 and result.shape[1] < out.shape[1]:
          for i in range(result.shape[1], out.shape[1]):
              result[i] = None
      ctx[op.outputs[0].key] = result
  
imports: import inspect
  import numpy
  import pandas
  from ...None import opcodes
  from ...core import OutputType, recursive_tile
  from ...serialization.serializables import KeyField, StringField, TupleField, DictField
  from ...tensor import tensor
  from ...tensor.core import TENSOR_TYPE
  from ...utils import has_unknown_shape
  from ..align import align_series_series
  from ..core import SERIES_TYPE
  from ..initializer import Series
  from ..operands import DataFrameOperand, DataFrameOperandMixin
  from ..utils import build_empty_series, parse_index, infer_index_value
label_desc: Use image node_id 3 for calling the SeriesStringSplitHandler obj's underlying member method code with example usage: obj.execute(cls, ctx, op) without return types