search_agent.py

from llama_index.core.tools import FunctionTool
from llama_index.tools.duckduckgo import DuckDuckGoSearchToolSpec

def init_search_tool():
    search_tool_spec = DuckDuckGoSearchToolSpec()
    search_tool = FunctionTool.from_defaults(search_tool_spec.duckduckgo_full_search)
    return search_tool