human
Complete this python program:
def call(f):
assistant
#Here is the Python program you requested.

    """Wrap a function in a processor that calls `f` on the argument before
    passing it along.
    Useful for creating simple arguments to the `@preprocess` decorator.
    Parameters
    f : function
    Function accepting a single argument and returning a replacement.
    Examples
    >>> @preprocess(x=call(lambda x: x + 1))
    ... def foo(x):
    ...     return x
    >>> foo(1)
    2
    """
    @wraps(f)
    def processor(func, argname, arg):
        return f(arg)
    return processor