refactor models

[cunla]

No description provided.

[github-actions]

Coverage report:

Name                                              Stmts   Miss Branch BrPart  Cover
-----------------------------------------------------------------------------------
fakeredis/__init__.py                                22      5      2      1    75%
fakeredis/_basefakesocket.py                        249      8    104      9    95%
fakeredis/_command_args_parsing.py                   71      2     42      2    96%
fakeredis/_commands.py                              358     12    140      8    96%
fakeredis/_connection.py                             95     10     32      7    87%
fakeredis/_fakesocket.py                             27      5      0      0    81%
fakeredis/_helpers.py                               170      4     65      3    97%
fakeredis/_msgs.py                                  101      0      0      0   100%
fakeredis/_server.py                                 55      3     18      3    92%
fakeredis/_tcp_server.py                             94     14     40     12    79%
fakeredis/_valkey.py                                 36     16     10      1    59%
fakeredis/aioredis.py                               150     14     47      8    88%
fakeredis/commands_mixins/__init__.py                 0      0      0      0   100%
fakeredis/commands_mixins/bitmap_mixin.py           200      4    116      2    98%
fakeredis/commands_mixins/connection_mixin.py        33      1     14      1    96%
fakeredis/commands_mixins/generic_mixin.py          268     56    152     12    78%
fakeredis/commands_mixins/geo_mixin.py              148     11     77      5    90%
fakeredis/commands_mixins/hash_mixin.py             203      8    106      6    95%
fakeredis/commands_mixins/list_mixin.py             245      8    152     10    95%
fakeredis/commands_mixins/pubsub_mixin.py           119      7     66      8    90%
fakeredis/commands_mixins/scripting_mixin.py        175      7     86      7    95%
fakeredis/commands_mixins/server_mixin.py            89      6     48      4    93%
fakeredis/commands_mixins/set_mixin.py              144     12     92      6    91%
fakeredis/commands_mixins/sortedset_mixin.py        420     16    225     16    95%
fakeredis/commands_mixins/streams_mixin.py          258     27    160     28    87%
fakeredis/commands_mixins/string_mixin.py           235      9    147     10    95%
fakeredis/commands_mixins/transactions_mixin.py      74      7     30      3    90%
fakeredis/geo/__init__.py                             3      0      0      0   100%
fakeredis/geo/geohash.py                             45      0     18      0   100%
fakeredis/geo/haversine.py                           10      0      0      0   100%
fakeredis/model/__init__.py                           5      0      0      0   100%
fakeredis/model/_stream.py                          325     14    122     11    94%
fakeredis/model/_timeseries_model.py                173     13     84      4    90%
fakeredis/model/_topk.py                             85      1     30      3    97%
fakeredis/model/_zset.py                             68      0     16      0   100%
fakeredis/stack/__init__.py                          27     14      4      0    42%
fakeredis/stack/_bf_mixin.py                        122     18     74      9    81%
fakeredis/stack/_cf_mixin.py                        132     27     66      9    79%
fakeredis/stack/_cms_mixin.py                        79      0     50      0   100%
fakeredis/stack/_json_mixin.py                      327     12    180     10    96%
fakeredis/stack/_tdigest_mixin.py                   173     32    118     29    79%
fakeredis/stack/_timeseries_mixin.py                337     45    206     33    84%
fakeredis/stack/_topk_mixin.py                       77     15     48     15    76%
-----------------------------------------------------------------------------------
TOTAL                                              6027    463   2987    295    91%