Oauth2.refresh: def of bend-kit-oauth2@0.11.0.1
Import: import bend-kit-oauth2@0.11.0.1/oauth2.bend as Oauth2
Lines 208-211 of bend-kit-oauth2@0.11.0.1/oauth2.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-oauth2@0.11.0.1/oauth2.bend&start_line=208&end_line=211

import Base
import bend-kit-hairpin@0.13.0.1/hairpin.bend as Hairpin

# RFC 6749 §6. scope: "" keeps the granted scope. ErrExpired when tok has no refresh token.
def refresh(h: Hairpin.Client, cfg: Config, tok: Token, +scope: String) -> IO(Hairpin.Client & Result<&1, &1, Err, Token>):
  Token{a, k, +r, s, e} = tok
  refresh.go(String.is_empty(r), h, cfg, r, scope)

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=IO
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.is_empty
  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-oauth2@0.11.0.1/oauth2.bend&name=Config
  https://jend.leeeet.dev/definition.txt?path=bend-kit-oauth2@0.11.0.1/oauth2.bend&name=Err
  https://jend.leeeet.dev/definition.txt?path=bend-kit-oauth2@0.11.0.1/oauth2.bend&name=Token
  https://jend.leeeet.dev/definition.txt?path=bend-kit-oauth2@0.11.0.1/oauth2.bend&name=refresh.go