code: def last() -> SelectorType:
      """
      Select the last column in the current scope.
  
      See Also
      --------
      all : Select all columns.
      first : Select the first column in the current scope.
  
      Examples
      --------
      >>> import polars.selectors as cs
      >>> df = pl.DataFrame(
      ...     {
      ...         "foo": ["x", "y"],
      ...         "bar": [123, 456],
      ...         "baz": [2.0, 5.5],
      ...         "zap": [0, 1],
      ...     }
      ... )
  
      Select the last column:
  
      >>> df.select(cs.last())
      shape: (2, 1)
      ┌─────┐
      │ zap │
      │ --- │
      │ i64 │
      ╞═════╡
      │ 0   │
      │ 1   │
      └─────┘
  
      Select everything  *except* for the last column:
  
      >>> df.select(~cs.last())
      shape: (2, 3)
      ┌─────┬─────┬─────┐
      │ foo ┆ bar ┆ baz │
      │ --- ┆ --- ┆ --- │
      │ str ┆ i64 ┆ f64 │
      ╞═════╪═════╪═════╡
      │ x   ┆ 123 ┆ 2.0 │
      │ y   ┆ 456 ┆ 5.5 │
      └─────┴─────┴─────┘
  
      """
      return _selector_proxy_(F.last(), name="last")
  
imports: from __future__ import annotations
  import re
  from datetime import timezone
  from functools import reduce
  from operator import or_
  from typing import TYPE_CHECKING, Any, Collection, Literal, Mapping, overload
  from polars import functions
  from polars.datatypes import FLOAT_DTYPES, INTEGER_DTYPES, NUMERIC_DTYPES, SIGNED_INTEGER_DTYPES, TEMPORAL_DTYPES, UNSIGNED_INTEGER_DTYPES, Binary, Boolean, Categorical, Date, Datetime, Decimal, Duration, Object, String, Time, is_polars_dtype
  from polars.expr import Expr
  from polars.utils.deprecation import deprecate_nonkeyword_arguments
  from polars.utils.various import is_column
label_desc: Use image node_id 27 for calling a global function with example usage: last() and returns: _selector_proxy_