code: def execute(cls, ctx, op):
      if vineyard is None:
          raise RuntimeError("vineyard is not available")
  
      socket = resolve_vineyard_socket(ctx, op)
      client = vineyard.connect(socket)
  
      client = vineyard.connect(socket)
      ctx[op.outputs[0].key] = client.get(
          vineyard.ObjectID(op.object_id)
      )
  
imports: import numpy
  import pandas
  from ...None import opcodes
  from ...core import OutputType
  from ...core.context import get_context
  from ...serialization.serializables import Int32Field, StringField
  from ...tensor.datasource.from_vineyard import resolve_vineyard_socket
  from ...utils import calc_nsplits, has_unknown_shape, lazy_import
  from ..operands import DataFrameOperand, DataFrameOperandMixin
  from ..utils import parse_index
label_desc: Use image node_id 4 for calling the DataFrameFromVineyardChunk obj's underlying member method code with example usage: obj.execute(cls, ctx, op) without return types