Addressed #11: Added anthropic support

mindsql/_utils/constants.py

@@ -30,5 +30,6 @@
 CONFIG_REQUIRED_ERROR = "Configuration is required."
 LLAMA_PROMPT_EXCEPTION = "Prompt cannot be empty."
 OPENAI_VALUE_ERROR = "OpenAI API key is required"
-OPENAI_PROMPT_EMPTY_EXCEPTION = "Prompt cannot be empty."
+PROMPT_EMPTY_EXCEPTION = "Prompt cannot be empty."
 POSTGRESQL_SHOW_CREATE_TABLE_QUERY = """SELECT 'CREATE TABLE "' || table_name || '" (' || array_to_string(array_agg(column_name || ' ' || data_type), ', ') || ');' AS create_statement FROM information_schema.columns WHERE table_name = '{table}' GROUP BY table_name;"""
+ANTHROPIC_VALUE_ERROR = "Anthropic API key is required"

mindsql/llms/anthropic.py

@@ -0,0 +1,91 @@
+from anthropic import Anthropic
+
+from . import ILlm
+from .._utils.constants import ANTHROPIC_VALUE_ERROR, PROMPT_EMPTY_EXCEPTION
+
+
+class AnthropicAi(ILlm):
+    def __init__(self, config=None, client=None):
+        """
+        Initialize the class with an optional config parameter.
+
+        Parameters:
+            config (any): The configuration parameter.
+            client (any): The client parameter.
+
+        Returns:
+            None
+        """
+        self.config = config
+        self.client = client
+
+        if client is not None:
+            self.client = client
+            return
+
+        if 'api_key' not in config:
+            raise ValueError(ANTHROPIC_VALUE_ERROR)
+        api_key = config.pop('api_key')
+        self.client = Anthropic(api_key=api_key, **config)
+
+    def system_message(self, message: str) -> any:
+        """
+        Create a system message.
+
+        Parameters:
+            message (str): The message parameter.
+
+        Returns:
+            any
+        """
+        return {"role": "system", "content": message}
+
+    def user_message(self, message: str) -> any:
+        """
+        Create a user message.
+
+        Parameters:
+            message (str): The message parameter.
+
+        Returns:
+            any
+        """
+        return {"role": "user", "content": message}
+
+    def assistant_message(self, message: str) -> any:
+        """
+        Create an assistant message.
+
+        Parameters:
+            message (str): The message parameter.
+
+        Returns:
+            any
+        """
+        return {"role": "assistant", "content": message}
+
+    def invoke(self, prompt, **kwargs) -> str:
+        """
+        Submit a prompt to the model for generating a response.
+
+        Parameters:
+            prompt (str): The prompt parameter.
+            **kwargs: Additional keyword arguments (optional).
+                - temperature (float): The temperature parameter for controlling randomness in generation.
+                - max_tokens (int): Maximum number of tokens to be generated.
+        Returns:
+            str: The generated response from the model.
+        """
+        if prompt is None or len(prompt) == 0:
+            raise Exception(PROMPT_EMPTY_EXCEPTION)
+
+        model = self.config.get("model", "claude-3-opus-20240229")
+        temperature = kwargs.get("temperature", 0.1)
+        max_tokens = kwargs.get("max_tokens", 1024)
+        response = self.client.messages.create(model=model, messages=[{"role": "user", "content": prompt}],
+                                               max_tokens=max_tokens, temperature=temperature)
+        for content in response.content:
+            if isinstance(content, dict) and content.get("type") == "text":
+                return content["text"]
+            elif hasattr(content, "text"):
+                return content.text

mindsql/llms/open_ai.py

@@ -1,7 +1,7 @@
 from openai import OpenAI
 
 from . import ILlm
-from .._utils.constants import OPENAI_VALUE_ERROR, OPENAI_PROMPT_EMPTY_EXCEPTION
+from .._utils.constants import OPENAI_VALUE_ERROR, PROMPT_EMPTY_EXCEPTION
 
 
 class OpenAi(ILlm):
@@ -77,7 +77,7 @@ def invoke(self, prompt, **kwargs) -> str:
             str: The generated response from the model.
         """
         if prompt is None or len(prompt) == 0:
-            raise Exception(OPENAI_PROMPT_EMPTY_EXCEPTION)
+            raise Exception(PROMPT_EMPTY_EXCEPTION)
 
         model = self.config.get("model", "gpt-3.5-turbo")
         temperature = kwargs.get("temperature", 0.1)