@interface WFWeatherDataServiceRequestSigner : NSObject + (id)roundDate:(id)a0 toMinutes:(unsigned long long)a1; + (void)signRequest:(id)a0 withDate:(id)a1; + (void)signRequest:(id)a0 withSecret:(id)a1 andDate:(id)a2; + (id)buildAuthHeader:(id)a0 withSecret:(id)a1 andDate:(id)a2; @end