human
Solve the following python programming problem given the following code:
def asRGB(self) : 
    "Return image as RGB pixels.  RGB colour images are passed
        through unchanged.
greyscales are expanded into RGB
        triplets (there is a small speed overhead for doing this).

        An alpha channel in the source image will raise an
        exception.

        The return values are as for the :meth:`read` method
        except that the *metadata* reflect the returned pixels, not the
        source image.  In particular, for this method
        ``metadata['greyscale']`` will be ``False``.
        " 
    (width, height, pixels, meta) = self.asDirect () 
    if meta ['alpha'] : 
        raise Error ('will not convert image with alpha channel to RGB') 
if (not meta ['greyscale']) : 
        return (width, height, pixels, meta) 
meta ['greyscale'] = False 
    typecode = 'BH' [(meta ['bitdepth'] > 8)] 
    def iterrgb() : 
        for row in pixels : 
            a = ((array (typecode, [0]) * 3) * width) 
            for i in range (3) : 
                a [i : : 3] = row 
(yield a) 
return (width, pixels, iterrgb (), meta) 

    
    

    Fix the buggy line: return (width, pixels, iterrgb (), meta)
assistant
#Here is Python program to fix the buggy line: return (width, pixels, iterrgb (), meta)
.

return (width, height, iterrgb (), meta)