<human>:  Give me a Python function to check if string or heximal number is a string.
<bot>: Here is a Python function to check if string or heximal number is a string

import re

def _is_hex_number(s):
  """Checks if string or heximal number."""
  try:
    int(s, 16)
    return True
  except ValueError:
    return False

# Enter the string
s = "0x1234"

# Calling the function
print((_is_hex_number(s)))

#Example Output
# True

#Remember to inspect code for bugs.