@interface WFNumberFieldUtilities : NSObject + (void)negateTextInput:(id)a0; + (BOOL)shouldChangeText:(id)a0 allowMinus:(BOOL)a1; + (id)stringBySanitizingNumberString:(id)a0 allowDecimalNumbers:(BOOL)a1; + (id)decimalSymbol; + (id)negateText:(id)a0; + (unsigned long long)numberOfOccurrencesOfString:(id)a0 inString:(id)a1; @end