<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def vb_create_machine(name=None):
    '''
    Creates a machine on the virtualbox hypervisor

    TODO pass more params to customize machine creation
    @param name:
    @type name: str
    @return: Representation of the created machine
    @rtype: dict
    '''
    vbox = vb_get_box()
    log.info('Create virtualbox machine %s ', name)
    groups = None
    os_type_id = 'Other'
    new_machine = vbox.createMachine(
        None,  # Settings file
        name,
        groups,
        os_type_id,
        None  # flags
    )
    vbox.registerMachine(new_machine)
    log.info('Finished creating %s', name)
    return vb_xpcom_to_attribute_dict(new_machine, 'IMachine')