[chore]: Rename modules for better readability and maintainability (#587)

embedchain/llm/gpt4all.py

@@ -0,0 +1,46 @@
+from typing import Iterable, Optional, Union
+
+from embedchain.config import BaseLlmConfig
+from embedchain.helper.json_serializable import register_deserializable
+from embedchain.llm.base import BaseLlm
+
+
+@register_deserializable
+class GPT4ALLLlm(BaseLlm):
+    def __init__(self, config: Optional[BaseLlmConfig] = None):
+        super().__init__(config=config)
+        if self.config.model is None:
+            self.config.model = "orca-mini-3b.ggmlv3.q4_0.bin"
+        self.instance = GPT4ALLLlm._get_instance(self.config.model)
+
+    def get_llm_model_answer(self, prompt):
+        return self._get_gpt4all_answer(prompt=prompt, config=self.config)
+
+    @staticmethod
+    def _get_instance(model):
+        try:
+            from gpt4all import GPT4All
+        except ModuleNotFoundError:
+            raise ModuleNotFoundError(
+                "The GPT4All python package is not installed. Please install it with `pip install --upgrade embedchain[opensource]`"  # noqa E501
+            ) from None
+
+        return GPT4All(model_name=model)
+
+    def _get_gpt4all_answer(self, prompt: str, config: BaseLlmConfig) -> Union[str, Iterable]:
+        if config.model and config.model != self.config.model:
+            raise RuntimeError(
+                "OpenSourceApp does not support switching models at runtime. Please create a new app instance."
+            )
+
+        if config.system_prompt:
+            raise ValueError("OpenSourceApp does not support `system_prompt`")
+
+        response = self.instance.generate(
+            prompt=prompt,
+            streaming=config.stream,
+            top_p=config.top_p,
+            max_tokens=config.max_tokens,
+            temp=config.temperature,
+        )
+        return response