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Python functions to use dictionary functions to replace in the Python function.
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Here is a Python function to use dictionary function to replace in a dictionary

def replace_dict(d, key, value):
    """
    Replace a value in a dictionary

    :type d: dict
    :param d: The dictionary to replace in

    :type key: str
    :param key: The key to replace in

    :type value: str
    :param value: The value to replace in
    """

    d[key] = value

# Enter the dictionary
d = {'key1': 'value1', 'key2': 'value2'}

# Calling the function
print((replace_dict(d, 'key1', 'new_value1')))

#Example Output
# None

#Remember to inspect code for bugs.