method Temporal.PlainYearMonth.prototype.subtract
          
PlainYearMonth.prototype.subtract(durationLike: ,options?: ArithmeticOptions,): Temporal.PlainYearMonth 
      optional
options: ArithmeticOptions
      
    
PlainYearMonth.prototype.subtract(durationLike: ,options?: ArithmeticOptions,): Temporal.PlainYearMonth 
      
options: ArithmeticOptions