added explination in cost_integration

autogpt_platform/backend/backend/sdk/cost_integration.py

@@ -43,6 +43,9 @@ def register_provider_costs_for_block(block_class: Type[Block]) -> None:
         return
 
     # Look for credentials fields
+    # The cost system works of filtering on credentials fields,
+    # without credentials fields, we can not apply costs
+    # TODO: Improve cost system to allow for costs witout a provider
     credentials_fields = input_schema.get_credentials_fields()
     if not credentials_fields:
         logger.debug(f"Block {block_class.__name__} has no credentials fields")

autogpt_platform/backend/backend/sdk/provider.py

@@ -23,7 +23,7 @@ class OAuthConfig(BaseModel):
 
 class Provider:
     """A configured provider that blocks can use.
-    
+
     A Provider represents a service or platform that blocks can integrate with, like Linear, OpenAI, etc.
     It contains configuration for:
     - Authentication (OAuth, API keys)
@@ -32,7 +32,7 @@ class Provider:
     - Webhook handling
     - Error handling
     - API client factory
-    
+
     Blocks use Provider instances to handle authentication, make API calls, and manage service-specific logic.
     """