// ensure connected
                    trans.ensureConnected();
                    refServerName = trans.getRemoteHostName();
                } catch (final IOException e) {
                    log.warn("Failed to connect to domain controller", e);
                }
                dr = getReferral(tf, trans, domain, domain, refServerName, root, null);
            }
        }

        if (log.isTraceEnabled()) {

                }
            }
        } catch (final SocketTimeoutException ste) {
            log.trace("Socket timeout", ste);
        } catch (final Exception ex) {
            log.warn("Uncaught exception in NameServiceClient", ex);
        } finally {
            tryClose();
        }
    }

Es handelt sich einfach um eine Funktion, die die gleichen Parameter entgegennimmt wie eine *Pfadoperation-Funktion*:
{* ../../docs_src/dependencies/tutorial001_an_py310.py hl[8:9] *}

Das war's schon.

**Zwei Zeilen**.

Und sie hat die gleiche Form und Struktur wie alle Ihre *Pfadoperation-Funktionen*.

import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.http.HttpMethod
import okhttp3.internal.http.StatusLine
import okhttp3.internal.platform.Platform
import okhttp3.internal.platform.Platform.Companion.WARN
import okhttp3.internal.toLongOrDefault
import okio.Buffer
import okio.BufferedSink
import okio.BufferedSource
import okio.ByteString.Companion.decodeBase64
import okio.ByteString.Companion.encodeUtf8

        final CrawlingInfo crawlingInfo = getCrawlingInfoService().getLast(sessionId);
        if (crawlingInfo == null) {
            logger.warn("No crawling session: {}", sessionId);
            return;
        }
        if (StringUtil.isNotBlank(name)) {
            crawlingInfo.setName(name);
        } else {

            log.debug("Transient SMB error: {} (attempt {}/{})", getMessage(), attemptNumber, retryPolicy.getMaxAttempts());
        } else if (isRetryable()) {
            log.warn("Retryable SMB error: {} in operation '{}' (attempt {}/{})", getMessage(), operationName, attemptNumber,
                    retryPolicy.getMaxAttempts());
        } else {

        if ((msg.getFlags2() & SmbConstants.FLAGS2_SECURITY_SIGNATURES) == 0) {
            // signature requirements need to be checked somewhere else
            log.warn("Expected signed response, but is not signed");
            return false;
        }

        update(this.macSigningKey, 0, this.macSigningKey.length);
        int index = offset;

                if (log.isDebugEnabled()) {
                    log.debug("Adjusting server name " + s + " to " + fqdn);
                }
                this.server = fqdn;
            } else {
                log.warn("Have unmappable netbios name " + s);
            }
        }
    }

    /**
     * @return the resolveHashes
     */
    @Override
    public boolean isResolveHashes() {

        return destroyed;
    }

    @Override
    public void close() {
        try {
            destroy();
        } catch (DestroyFailedException e) {
            log.warn("Failed to destroy secure credential storage", e);
        }
    }

                try {
                    list.add(new LabelTypePattern(labelType.getValue(), includedPaths, excludedPaths));
                } catch (final Exception e) {
                    logger.warn("Failed to create label pattern: label={}, includedPaths={}, excludedPaths={}", labelType.getValue(),
                            includedPaths, excludedPaths, e);
                }
            }
        }