CLI cleanup and documentation (#2244)

* CLI init refactor

* fix

* cleanup and (partial) docs

* Adding documentation and continuing cleanup (in progress)

* remove finetune.py script

* continued cleanup and documentation

* pytest fixes

* review comments

* fix

* Fix

* typing fixes

* make sure the batch dataset patcher for multipack is always loaded when handling datasets

* review comments

* fix

---------

Co-authored-by: Dan Saunders <dan@axolotl.ai>
Co-authored-by: Wing Lian <wing@axolotl.ai>

tests/e2e/patched/test_model_patches.py

@@ -6,7 +6,6 @@ import unittest
 
 import transformers
 
-from axolotl.common.cli import TrainerCliArgs
 from axolotl.utils.config import normalize_config
 from axolotl.utils.dict import DictDefault
 from axolotl.utils.models import load_model, load_tokenizer
@@ -49,9 +48,8 @@ class TestModelPatches(unittest.TestCase):
             }
         )
         normalize_config(cfg)
-        cli_args = TrainerCliArgs()
         tokenizer = load_tokenizer(cfg)
-        model, _ = load_model(cfg, tokenizer, inference=cli_args.inference)
+        model, _ = load_model(cfg, tokenizer, inference=False)
 
         assert (
             "MixtralFlashAttention2"
@@ -87,9 +85,8 @@ class TestModelPatches(unittest.TestCase):
             }
         )
         normalize_config(cfg)
-        cli_args = TrainerCliArgs()
         tokenizer = load_tokenizer(cfg)
-        load_model(cfg, tokenizer, inference=cli_args.inference)
+        load_model(cfg, tokenizer, inference=False)
 
         assert (
             "torch.jit"