Natural.bit_length: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/math/natural.bend as Natural
Lines 166-167 of bend-collections@1.0.0.0/src/math/natural.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/math/natural.bend&start_line=166&end_line=167

import Base

def bit_length(+n: Nat) -> Nat:
  bit_length_go(n, n, 0n)

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/math/natural.bend&name=bit_length_go