Backward.accumulate: def of bendtorch-core@0.1.0.0
Import: import bendtorch-core@0.1.0.0/src/autograd/backward.bend as Backward
Lines 81-88 of bendtorch-core@0.1.0.0/src/autograd/backward.bend: https://jend.leeeet.dev/read.txt?path=bendtorch-core@0.1.0.0/src/autograd/backward.bend&start_line=81&end_line=88

import Base

def accumulate(total: Maybe<&2, F32>, contribution: Maybe<&2, F32>) -> Maybe<&2, F32>:
  match total contribution:
    case None{} contribution:
      contribution
    case Some{held} None{}:
      Some{held}
    case Some{held} Some{value}:
      Some{F32.add(held, value)}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe