StorageShape.first: def of stelliferous@0.0.2.0
Import: import stelliferous@0.0.2.0/proofs/storage_shape.bend as StorageShape
Lines 9-11 of stelliferous@0.0.2.0/proofs/storage_shape.bend: https://jend.leeeet.dev/read.txt?path=stelliferous@0.0.2.0/proofs/storage_shape.bend&start_line=9&end_line=11

import Base

def first(-Left: Data,-Right: Data,evidence: Both<Left,Right>) -> Left:
  Both{left,right} = evidence
  left

Uses (1):
  https://jend.leeeet.dev/definition.txt?path=stelliferous@0.0.2.0/proofs/storage_shape.bend&name=Both