code: def execute(cls, ctx, op):
      input_data = ctx[op.inputs[0].key]
      errors_ = op.errors
      downcast_ = op.downcast
      ctx[op.outputs[0].key] = pd.to_numeric(
          input_data, errors=errors_, downcast=downcast_
      )
  
file_path: mars/mars/dataframe/base/to_numeric.py
imports: import numpy
  import pandas
  from ..operands import DataFrameOperand, DataFrameOperandMixin
  from ...serialization.serializables import StringField
  from ..initializer import Series
  from ...tensor import tensor
  from ..core import SERIES_TYPE
  from ...tensor.core import TENSOR_TYPE, TensorOrder
  from ...core import ENTITY_TYPE, OutputType
label_desc: Use image node_id 4 for calling the DataFrameToNumeric obj's underlying member method code with example usage: obj.execute(cls, ctx, op) without return types