'Get variables about a specific host.'

def get_host_info(self):

    if ((not self.cache) or (len(self.cache) == 0)):
        self.load_cache_from_cache()
    if (self.args.host not in self.cache):
        self.update_cache()
        if (self.args.host not in self.cache):
            return self.json_format_dict({}, self.args.pretty)
    return self.json_format_dict(self.cache[self.args.host], self.args.pretty)
