When this Output is backwarding,
the delta parameter will not be back-propagated to its upstreams immediately.
Instead, the delta parameter will be accumulated internally.
Then, when this Output is flushing,
the delta accumulator will be processed and back-propagated to its upstreams.
This Output is reference counted.
When the last instance of all this Output's duplicates is closed,
flush will be called and all the upstreams will be closed as well.
A cumulative Tape returned by forward.
When this Output is backwarding, the
delta
parameter will not be back-propagated to its upstreams immediately. Instead, thedelta
parameter will be accumulated internally. Then, when this Output is flushing, the delta accumulator will be processed and back-propagated to its upstreams.This Output is reference counted. When the last instance of all this Output's duplicates is closed, flush will be called and all the upstreams will be closed as well.