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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def exec_commands(commands: str, **parameters: Any) -> None: """Execute the given Python commands. Function |exec_commands| is thought for testing purposes only (see the main documentation on module |hyd|). Seperate individual commands by semicolons and replaced whitespaces with underscores: Start to execute the commands ['x_=_1+1', 'print(x)'] for testing purposes. 2 |exec_commands| interprets double underscores as a single underscores: Start to execute the commands ['x_=_1', 'print(x.____class____)'] \ for testing purposes. <class 'int'> |exec_commands| evaluates additional keyword arguments before it executes the given commands: Start to execute the commands ['e=x==y', 'print(e)'] for testing purposes. False """

    cmdlist = commands.split(';')
    print(f'Start to execute the commands {cmdlist} for testing purposes.')
    for par, value in parameters.items():
        exec(f'{par} = {value}')
    for command in cmdlist:
        command = command.replace('__', 'temptemptemp')
        command = command.replace('_', ' ')
        command = command.replace('temptemptemp', '_')
        exec(command)