FlatMap ( underlying: Iterable [ A ] , f: A => IterableOnce [ B ] )

[+] val f : A => IterableOnce [ B ]

[+] val underlying : Iterable [ A ]

[+] def _1 : T1

[+] def _2 : T2

[+] def copy ( underlying: Iterable [ A ] , f: A => IterableOnce [ B ] ) : FlatMap [ A, B ]

[+] def copy$default$1 : Iterable [ A ]

[+] def copy$default$2 : A => IterableOnce [ B ]

[+] def iterator : Iterator [ A ]