[Feature] Add support for Together AI API (#1058)

tests/llm/test_together.py

@@ -0,0 +1,56 @@
+import os
+
+import pytest
+
+from embedchain.config import BaseLlmConfig
+from embedchain.llm.together import TogetherLlm
+
+
+@pytest.fixture
+def together_llm_config():
+    os.environ["TOGETHER_API_KEY"] = "test_api_key"
+    config = BaseLlmConfig(model="togethercomputer/RedPajama-INCITE-7B-Base", max_tokens=50, temperature=0.7, top_p=0.8)
+    yield config
+    os.environ.pop("TOGETHER_API_KEY")
+
+
+def test_init_raises_value_error_without_api_key(mocker):
+    mocker.patch.dict(os.environ, clear=True)
+    with pytest.raises(ValueError):
+        TogetherLlm()
+
+
+def test_get_llm_model_answer_raises_value_error_for_system_prompt(together_llm_config):
+    llm = TogetherLlm(together_llm_config)
+    llm.config.system_prompt = "system_prompt"
+    with pytest.raises(ValueError):
+        llm.get_llm_model_answer("prompt")
+
+
+def test_get_llm_model_answer(together_llm_config, mocker):
+    mocker.patch("embedchain.llm.together.TogetherLlm._get_answer", return_value="Test answer")
+
+    llm = TogetherLlm(together_llm_config)
+    answer = llm.get_llm_model_answer("Test query")
+
+    assert answer == "Test answer"
+
+
+def test_get_answer_mocked_together(together_llm_config, mocker):
+    mocked_together = mocker.patch("embedchain.llm.together.Together")
+    mock_instance = mocked_together.return_value
+    mock_instance.return_value = "Mocked answer"
+
+    llm = TogetherLlm(together_llm_config)
+    prompt = "Test query"
+    answer = llm.get_llm_model_answer(prompt)
+
+    assert answer == "Mocked answer"
+    mocked_together.assert_called_once_with(
+        together_api_key="test_api_key",
+        model="togethercomputer/RedPajama-INCITE-7B-Base",
+        max_tokens=50,
+        temperature=0.7,
+        top_p=0.8,
+    )
+    mock_instance.assert_called_once_with(prompt)

tests/test_utils.py

@@ -8,6 +8,7 @@ CONFIG_YAMLS = [
     "configs/chroma.yaml",
     "configs/chunker.yaml",
     "configs/cohere.yaml",
+    "configs/together.yaml",
     "configs/ollama.yaml",
     "configs/full-stack.yaml",
     "configs/gpt4.yaml",