Add the default base url configuration item

Author: wangshudong

src/openai/_client.py

@@ -100,7 +100,7 @@ def __init__(
         self.organization = organization
 
         if base_url is None:
-            base_url = f"https://api.openai.com/v1"
+            base_url = os.environ.get("OPENAI_ORG_ID") || f"https://api.openai.com/v1"
 
         super().__init__(
             version=__version__,
@@ -307,7 +307,8 @@ def __init__(
         self.organization = organization
 
         if base_url is None:
-            base_url = f"https://api.openai.com/v1"
+            base_url = base_url = os.environ.get("OPENAI_BASE_URL", "https://api.openai.com/v1")
+
 
         super().__init__(
             version=__version__,