count the number of elements in this Sequence that match the given predicate. Note that this typically runs forever if executed on an endless Sequence.
0.095dev (2025-10-09 18:01:25 GIT hash 4826e516431c193e428991dd546a46472973d8d4 built by fridi@fzen)
given predicate. Note that this typically
runs forever if executed on an endless Sequence.