def METHOD_NAME(**kwargs):
    lazy_fields = field_map['media']
    media_type = kwargs.get('media_type')
    if not media_type:
        media_type = kwargs.get('emby_type', '')
    media_type = media_type.lower()
    if media_type in field_map:
        lazy_fields = {**lazy_fields, **field_map[media_type]}
    else:
        lazy_fields = {**lazy_fields, **field_map['movie']}
    if media_type == 'episode':
        lazy_fields = {**lazy_fields, **field_map['series'], **field_map['season']}
    elif media_type == 'season':
        lazy_fields = {**lazy_fields, **field_map['series']}
    return lazy_fields