feat(toolbox-core): updated generated docstring to include parameters and their descriptions

[twishabansal]

This PR updates the docstring for generated functions to include information about the tools parameters provided by toolbox. Orchestration frameworks (such as LangChain) sometimes parse function docstrings to automatically extract information about the tool's parameters, including their names, types, and descriptions.

Note

To ensure LangChain correctly parses these newly added parameter descriptions when creating a tool, you must instantiate the StructuredTool using the parse_docstring=True flag in its constructor or the from_function class method. parse_docstring is False by default.

Without parse_docstring=True, LangChain might rely solely on type hints or fail to extract the detailed parameter descriptions provided in the Args: section of the docstring.

New:

def get_product_info (product_name: str) -> Dict[str, Any]:
"""
Get the stock amount and identifier for a given product

Args:
    product_name (str): Product name
"""

Old:

def get_product_info (product_name: str) -> Dict[str, Any]:
"""
Get the stock amount and identifier for a given product
"""