def find_field_name(field, model=DEFAULT_MODEL, app=DEFAULT_APP, fuzziness=.5):
    """
    >>> find_field_name('date_time', model='WikiItem')
    'date'
    >>> find_field_name('$#!@', model='WikiItem')
    >>> find_field_name('date', model='WikiItem')
    'end_date_time'
    >>> find_field_name('date', model='WikiItem')
    'date_in_svc'
    """
    return find_field_names(field, model, app, score_cutoff=int((1-fuzziness)*100), pad_with_none=True)[0]
>>> find_field_name('date_time', model='WikiItem')
    'date'
    >>> find_field_name('$#!@', model='WikiItem')
    >>> find_field_name('date', model='WikiItem')
    'end_date_time'
    >>> find_field_name('date', model='WikiItem')
    'date_in_svc'