Fix more tests

Author: mabashian

ansible_ai_connect/ai/api/model_pipelines/langchain/pipelines.py

@@ -459,5 +459,8 @@ class LangchainRoleExplanationPipeline(
     def __init__(self, config: LANGCHAIN_PIPELINE_CONFIGURATION):
         super().__init__(config=config)
 
+    def self_test(self) -> Optional[HealthCheckSummary]:
+        raise NotImplementedError
+
     def invoke(self, params: RoleExplanationParameters) -> RoleExplanationResponse:
         raise NotImplementedError

ansible_ai_connect/ai/api/model_pipelines/ollama/pipelines.py

@@ -21,6 +21,7 @@
     LangchainMetaData,
     LangchainPlaybookExplanationPipeline,
     LangchainPlaybookGenerationPipeline,
+    LangchainRoleExplanationPipeline,
     LangchainRoleGenerationPipeline,
 )
 from ansible_ai_connect.ai.api.model_pipelines.ollama.configuration import (
@@ -80,6 +81,19 @@ def get_chat_model(self, model_id):
         )
 
 
+@Register(api_type="ollama")
+class OllamaRoleExplanationPipeline(LangchainRoleExplanationPipeline[OllamaConfiguration]):
+
+    def __init__(self, config: OllamaConfiguration):
+        super().__init__(config=config)
+
+    def get_chat_model(self, model_id):
+        return OllamaLLM(
+            base_url=self.config.inference_url,
+            model=model_id,
+        )
+
+
 @Register(api_type="ollama")
 class OllamaPlaybookExplanationPipeline(LangchainPlaybookExplanationPipeline[OllamaConfiguration]):