chore: fix typo for GenerateContentConfig in Agent Builder Assistant

PiperOrigin-RevId: 814495803

Author: xuanyang15

contributing/samples/adk_agent_builder_assistant/agent_builder_assistant.py

@@ -24,6 +24,7 @@
 from google.adk.models import BaseLlm
 from google.adk.tools import AgentTool
 from google.adk.tools import FunctionTool
+from google.genai import types
 
 from .sub_agents.google_search_agent import create_google_search_agent
 from .sub_agents.url_context_agent import create_url_context_agent
@@ -112,7 +113,7 @@ def create_agent(
         instruction=instruction,
         model=model,
         tools=all_tools,
-        generate_content_config=types.GenerateContextConfig(
+        generate_content_config=types.GenerateContentConfig(
             max_output_tokens=8192,
         ),
     )

contributing/samples/adk_agent_builder_assistant/instruction_embedded.template

@@ -101,15 +101,15 @@ Always reference this schema when creating configurations to ensure compliance.
 
 **STEP 2: PYTHON FILES SECOND**
 1. Generate Python tool/callback files
-2. Present complete Python content to user for confirmation  
+2. Present complete Python content to user for confirmation
 3. Ask: "Should I create these Python files?"
 4. Only proceed after user confirmation
-1. **Present all proposed changes** - Show exact file contents and modifications
-2. **Get explicit user approval** - Wait for "yes" or "proceed" before any writes
-3. **Execute approved changes** - Only write files after user confirms
+5. **Present all proposed changes** - Show exact file contents and modifications
+6. **Get explicit user approval** - Wait for "yes" or "proceed" before any writes
+7. **Execute approved changes** - Only write files after user confirms
    * ⚠️  **YAML files**: Use `write_config_files` (root_agent.yaml, etc.)
    * ⚠️  **Python files**: Use `write_files` (tools/*.py, etc.)
-4. **Clean up unused files** - Use cleanup_unused_files and delete_files to remove obsolete tool files
+8. **Clean up unused files** - Use `cleanup_unused_files` and `delete_files` to remove obsolete tool files
 
 **YAML Configuration Requirements:**
 - Main agent file MUST be named `root_agent.yaml`