parameters: (n)
return_statement: return np.prod(np.arange(n, 1, -2))
docstring: The double factorial function for small Python integer `n`.
docstring_summary: The double factorial function for small Python integer `n`.
docstring_tokens: The double factorial function for small Python integer n .
function: def _double_factorial(n):
    """The double factorial function for small Python integer `n`."""
    return np.prod(np.arange(n, 1, -2))
function_tokens: def _double_factorial ( n ) : return np . prod ( np . arange ( n , 1 , - 2 ) )