Removes all keys and all values
Some(value) for the first matching value where the supplied function returns true for the given key, if no matches it returns None
Applies the supplied function to all keys and their values
true if the underlying containers is empty, may report false negatives when the last remove is underway
Associates the value of type V with the key of type K
Associates the value of type V with the key of type K
true if the value didn't exist for the key previously, and false otherwise
Disassociates the value of type V from the key of type K
Disassociates the value of type V from the key of type K
true if the value was disassociated from the key and false if it wasn't previously associated with the key
a _new_ array of all existing values for the given key at the time of the call
An implementation of a ConcurrentMultiMap Adds/remove is serialized over the specified key Reads are fully concurrent <-- el-cheapo