class_docstr: Apply python slice object to Polars LazyFrame.
  
  Only slices with efficient computation paths that map directly
  to existing lazy methods are supported.
code: def __init__(self, obj: LazyFrame):
      self.obj = obj
  
file_path: polars/py-polars/polars/slice.py
imports: from __future__ import annotations
  from typing import TYPE_CHECKING, Union
  import polars._reexport
label_desc: Use image node_id 1 to create a new LazyPolarsSlice object  with example: obj = LazyPolarsSlice(obj)