Decimal.Decimal.add: def of bend-kit-bignum@0.1.0.0
Import: import bend-kit-bignum@0.1.0.0/decimal.bend as Decimal
Lines 40-44 of bend-kit-bignum@0.1.0.0/decimal.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-bignum@0.1.0.0/decimal.bend&start_line=40&end_line=44

import Base
import bend-kit-bignum@0.1.0.0/bigint.bend as Big

def Decimal.add(a: Decimal, b: Decimal) -> Decimal:
  match a b:
    case Decimal{ua, +sa} Decimal{ub, +sb}:
      Decimal{Big.BigInt.add(Decimal.up(ua, Nat.sub(sb, sa)),
        Decimal.up(ub, Nat.sub(sa, sb))), Nat.max(sa, sb)}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.max
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=bend-kit-bignum@0.1.0.0/bigint.bend&name=BigInt.add
  https://jend.leeeet.dev/definition.txt?path=bend-kit-bignum@0.1.0.0/decimal.bend&name=Decimal
  https://jend.leeeet.dev/definition.txt?path=bend-kit-bignum@0.1.0.0/decimal.bend&name=Decimal.up