<human>:  Python functions to check if something is not a stride.
<bot>: Here is a Python function to check if something is not a stride

import re

def is_not_str(something):
  """Check if something is not a str."""
  return not isinstance(something, str)

# Enter the string
string = "carnation"

# Calling the function
print((is_not_str(string)))

#Example Output
# False

#Remember to inspect code for bugs.