import mysql.connector

def create_connection(args):
    """Creates a connection to a MySQL database.

    Args:
        args: A namespace object containing the following attributes:
            db_name: The name of the MySQL database.
            db_host: The hostname or IP address of the MySQL server.
            db_port: The port number of the MySQL server.
            db_user: The username for the MySQL database.
            db_password: The password for the MySQL database.

    Returns:
        A MySQL connection object, or `None` if the connection failed.
    """

    db_name = args.db_name
    db_host = args.db_host
    db_port = args.db_port
    db_user = args.db_user
    db_password = args.db_password

    try:
        # Connect to the MySQL server.
        connection = mysql.connector.connect(
            host=db_host,
            port=db_port,
            user=db_user,
            password=db_password,
            database=db_name
        )

        # Return the connection object.
        return connection
    except mysql.connector.Error as err:
        # Print the error message to the console.
        print(f"Error: {err}")

        # Return `None` to indicate that the connection failed.
        return None