services(azure): fix AzureLLMService

Fixes #160

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to **pipecat** will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+
+- Fixed AzureLLMService.
+
 ## [0.0.21] - 2024-05-22
 
 ### Added

src/pipecat/services/azure.py

@@ -77,10 +77,11 @@ def __init__(
             endpoint,
             api_version="2023-12-01-preview",
             model):
-        super().__init__(api_key=api_key, model=model)
+        # Initialize variables before calling parent __init__() because that
+        # will call create_client() and we need those values there.
         self._endpoint = endpoint
         self._api_version = api_version
-        self._model: str = model
+        super().__init__(api_key=api_key, model=model)
 
     def create_client(self, api_key=None, base_url=None):
         self._client = AsyncAzureOpenAI(