interface DuckDuckGoSearchParametersDefault config object for the tool runnable.
Optional provider-specific extra fields for the tool.
This is used to pass provider-specific configuration that doesn't fit into standard tool fields.
The tool response format.
If "content" then the output of the tool is interpreted as the contents of a ToolMessage. If "content_and_artifact" then the output is expected to be a two-tuple corresponding to the (content, artifact) of a ToolMessage.
The search options for the search using the SearchOptions interface from the duck-duck-scrape package.
Whether to print out response text.