1 files changed, 29 insertions, 0 deletions
diff --git a/rag/generator/cohere.py b/rag/generator/cohere.py
new file mode 100644
index 0000000..cf95c18
--- /dev/null
+++ b/rag/generator/cohere.py
@@ -0,0 +1,29 @@
+import os
+from typing import Any, Generator
+import cohere
+
+from dataclasses import asdict
+
+from .prompt import Prompt
+from .abstract import AbstractGenerator
+
+from loguru import logger as log
+
+
+class Cohere(metaclass=AbstractGenerator):
+    def __init__(self) -> None:
+        self.client = cohere.Client(os.environ["COHERE_API_KEY"])
+
+    def generate(self, prompt: Prompt) -> Generator[Any, Any, Any]:
+        log.debug("Generating answer from cohere")
+        for event in self.client.chat_stream(
+            message=prompt.query,
+            documents=[asdict(d) for d in prompt.documents],
+            prompt_truncation="AUTO",
+        ):
+            if event.event_type == "text-generation":
+                yield event.text
+            elif event.event_type == "citation-generation":
+                yield event.citations
+            elif event.event_type == "stream-end":
+                yield event.finish_reason