from datetime import datetime
from langchain.agents import tool


@tool
def time(format: str = "%Y-%m-%d %H:%M:%S") -> str:
    """Return the current time.
    Format acepted:
    - %Y-%m-%d %H:%M:%S
    - %Y-%m-%d
    - %H:%M:%S
    - etc.
    """
    return str(datetime.now().strftime(format))