human
Write me a Python function to drop a key in dictionary.
assistant
Here is a Python function to drop a key in dictionary

import json

def drop_key(dictionary, key):
    """
    Drops a key from a dictionary.
    """
    if key in dictionary:
        del dictionary[key]

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

# Calling the function
print((drop_key(dictionary, "a")))

#Example Output
# None

#Remember to inspect code for bugs.