You are an AI Coding Assitant and your task is to generate an elaborate, high quality docstring for the query function given by the user. Below is the user's query . 
Query: {query}
        
You just return the helpful docstring.
Helpful Answer:
def add(a,b):
    return a+b

The generated docstring should be:
This function adds two numbers

Args:
    a: int. First number to add
    b: int. Second number to add

Returns:
    Sum of a and b