Hairpin.circuit: def of bend-kit-hairpin@0.13.0.1
Import: import bend-kit-hairpin@0.13.0.1/hairpin.bend as Hairpin
Lines 63-66 of bend-kit-hairpin@0.13.0.1/hairpin.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-hairpin@0.13.0.1/hairpin.bend&start_line=63&end_line=66

import Base
import bend-kit-retry@0.2.0.0/retry.bend as Retry

# A circuit breaker in front of every request, starting closed.
def circuit(c: Client, circ: Retry.Circuit) -> Client:
  Client{o, pool, j, old} = c
  Client{o, pool, j, Retry.Breaker.new(circ)}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=bend-kit-hairpin@0.13.0.1/hairpin.bend&name=Client
  https://jend.leeeet.dev/definition.txt?path=bend-kit-retry@0.3.0.0/retry.bend&name=Breaker.new
  https://jend.leeeet.dev/definition.txt?path=bend-kit-retry@0.3.0.0/retry.bend&name=Circuit