'Retrieve a list of favicons for a list of feeds.
Used when combined with /reader/feeds and include_favicons=false, so the feeds request contains far less data.
Useful for mobile devices, but requires a second request.'

@request('reader/favicons')
def favicons(self, feeds=None):

    data = []
    for feed in feeds:
        data.append(('feeds', feed))
    return data
