The exemplar is the starting length of the output sequence in collector-as, so add another collector-for-as that takes a seq that we are making a collector for.  | 
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| .. | ||
| complex | ||
| complex-components | ||
| cords | ||
| deep | ||
| generalizations | ||
| merged | ||
| parser | ||
| product | ||
| unrolled | ||
| windowed | ||