code: public AuthorizationCodeRequest.Builder authorizationCode(String code) {
      return new AuthorizationCodeRequest.Builder(clientId, clientSecret)
              .setDefaults(httpManager, scheme, host, port)
              .grant_type("authorization_code")
              .code(code)
              .redirect_uri(redirectUri);
    }
docs: Returns a builder that can be used to build requests for authorization code grants. <br>
  Requires authorization code to be set.
  
  @param code The authorization code returned from the initial request to the Account /authorize endpoint.
  @return An {@link AuthorizationCodeRequest.Builder}.