code: def english_upper(s):
      """Apply English case rules to convert ASCII strings to all upper case.
  
      This is an internal utility function to replace calls to str.upper() such
      that we can avoid changing behavior with changing locales. In particular,
      Turkish has distinct dotted and dotless variants of the Latin letter "I" in
      both lowercase and uppercase. Thus, "i".upper() != "I" in a "tr" locale.
  
      Parameters
      ----------
      s : str
  
      Returns
      -------
      uppered : str
  
      Examples
      --------
      >>> from numpy.lib.utils import english_upper
      >>> s = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_'
      >>> english_upper(s)
      'ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_'
      >>> english_upper('')
      ''
      """
      uppered = s.translate(UPPER_TABLE)
      return uppered
  
imports: import os
  import re
  import struct
  import sys
  import textwrap
  import argparse
  import string
label_desc: Use image node_id 5 for calling a global function with example usage: english_upper(s) and returns: uppered