def _property_detect_type(name, values):
    '''
    Detect the datatype of a property
    '''
    value_type = 'str'
    if values.startswith('on | off'):
        value_type = 'bool'
    elif values.startswith('yes | no'):
        value_type = 'bool_alt'
    elif values in ['<size>', '<size> | none']:
        value_type = 'size'
    elif values in ['<count>', '<count> | none', '<guid>']:
        value_type = 'numeric'
    elif name in ['sharenfs', 'sharesmb', 'canmount']:
        value_type = 'bool'
    elif name in ['version', 'copies']:
        value_type = 'numeric'
    return value_type
Detect the datatype of a property