GenericMapMonoid

abstract def add(oldMap: M, kv: (K, V)): M

abstract def fromMutable(mut: Map[K, V]): M

abstract def remove(oldMap: M, k: K): M

abstract def zero: M

final def !=(arg0: AnyRef): Boolean

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: AnyRef): Boolean

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def assertNotZero(v: M): Unit

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

def isNonZero(x: M): Boolean

final def ne(arg0: AnyRef): Boolean

val nonZero: (V) ⇒ Boolean

def nonZeroOption(v: M): Option[M]

final def notify(): Unit

final def notifyAll(): Unit

def plus(x: M, y: M): M

implicit val semigroup: Semigroup[V]

def sum(vs: TraversableOnce[M]): M

def sumOption(items: TraversableOnce[M]): Option[M]

override this if there is a faster way to do this sum than reduceLeftOption on plus

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit