class_docstr: Namespace for expressions on a meta level.
class_docstr_tok: ["Namespace","for","expressions","on","a","meta","level","."]
docstr: Add selectors.
docstr_tok: ["Add","selectors","."]
code: def _selector_add(self, other: Expr) -> Expr:
      """Add selectors."""
      return wrap_expr(self._pyexpr._meta_selector_add(other._pyexpr))
  
imports: from __future__ import annotations
  from io import BytesIO, StringIO
  from pathlib import Path
  from typing import TYPE_CHECKING, Literal, overload
  from polars.exceptions import ComputeError
  from polars.utils._wrap import wrap_expr
  from polars.utils.deprecation import deprecate_nonkeyword_arguments
  from polars.utils.various import normalize_filepath
label_desc: Use image node_id 16 for calling the ExprMetaNameSpace obj's underlying member method code with example usage: obj._selector_add(other) and returns: wrap_expr