code: def endpoint(self):
      return self._endpoint
  
file_path: mars/mars/tensor/datasource/linspace.py
imports: import numpy
  from ...None import opcodes
  from ...core import ExecutableTuple
  from ...serialization.serializables import Int64Field, BoolField, AnyField
  from ...config import options
  from ..utils import decide_chunk_sizes
  from .core import TensorNoInput
  from ..array_utils import create_array
label_desc: Use image node_id 7 for calling the TensorLinspace obj's underlying member method code with example usage: obj.endpoint() and returns: self