TraversalWitness.first: def of stelliferous@0.0.2.0
Import: import stelliferous@0.0.2.0/proofs/traversal_witness.bend as TraversalWitness
Lines 84-86 of stelliferous@0.0.2.0/proofs/traversal_witness.bend: https://jend.leeeet.dev/read.txt?path=stelliferous@0.0.2.0/proofs/traversal_witness.bend&start_line=84&end_line=86

import Base

def first(~Left: Type,~Right: Type,pair: Left & Right) -> Left:
  (left,right) = pair
  left

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma