Human: Write me a Python code to check if key is in dect. Assistant: 
Here is a Python code to check if key is in Dect

import re

def __check_key_in_dect(dect, key):
    """
    Check if key in dect.
    """
    if key in dect:
        return True
    else:
        return False

# Enter the dictionary
dect = {"key1": "value1", "key2": "value2", "key3": "value3"}

# Calling the function
print((__check_key_in_dect(dect, "key1")))

#Example Output
# True

#Remember to inspect code for bugs.