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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 obtain_all_devices(my_devices):
 """Dynamically create 'all' group."""

    new_devices = {}
    for device_name, device_or_group in my_devices.items():
        # Skip any groups
        if not isinstance(device_or_group, list):
            new_devices[device_name] = device_or_group
    return new_devices