class_docstr: represent tensor from DataFrame
code: def __init__(self, extract_multi_index=False, **kw):
      super().__init__(_extract_multi_index=extract_multi_index, **kw)
  
file_path: mars/mars/tensor/datasource/from_dataframe.py
imports: from ...None import opcodes
  from ...serialization.serializables import BoolField, KeyField
  from ..utils import to_numpy
  from ..core import TensorOrder
  from .core import TensorHasInput
label_desc: Use image node_id 1 to create a new TensorFromDataFrame object from inherited base classes: TensorHasInput with example: obj = TensorFromDataFrame(extract_multi_index)