human
check dict key type.
assistant
Here is a Python program to check the dict key type

import random

def check_dict_key_type(dictionary):
    """
    check dict key type
    """
    for key in list(dictionary.keys()):
        if not isinstance(key, str):
            raise TypeError("The type of key in the dictionary is not str")

# Enter the dictionary
dictionary = {"a": 1, "b": 2, "c": 3}

# Calling the function
print((check_dict_key_type(dictionary)))

#Example Output
# None

#Remember to inspect code for bugs.