import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Config;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;
import jcifs.netbios.UniAddress;
import jcifs.smb.NtStatus;
import jcifs.smb.NtlmChallenge;
import jcifs.smb.NtlmPasswordAuthentication;
import jcifs.smb.SmbAuthException;
import jcifs.smb.SmbException;
import jcifs.smb.SmbSessionInternal;
import jcifs.smb.SmbTransportInternal;

    // Fail fast on a null. We throw NPE here because the contract of Executor states that it throws
    // NPE on null listener, so we propagate that contract up into the add method as well.
    checkNotNull(runnable, "Runnable was null.");
    checkNotNull(executor, "Executor was null.");

    // Lock while we check state. We must maintain the lock while adding the new pair so that

func httpTracerMiddleware(h http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		// Setup a http request response recorder - this is needed for
		// http stats requests and audit if enabled.
		respRecorder := xhttp.NewResponseRecorder(w)

		// Setup a http request body recorder
		reqRecorder := &xhttp.RequestRecorder{Reader: r.Body}
		r.Body = reqRecorder

clear:both;content:""}.contacts-list>li:last-of-type{border-bottom:0}.contacts-list-img{border-radius:50%;float:left;width:40px}.contacts-list-info{color:#fff;margin-left:45px}.contacts-list-name,.contacts-list-status{display:block}.contacts-list-name{font-weight:600}.contacts-list-status{font-size:.875rem}.contacts-list-date{color:#ced4da;font-weight:400}.contacts-list-msg{color:#b1bbc4}.direct-chat-primary .right>.direct-chat-text{background-color:#007bff;border-color:#007bff;color:#fff}.direct-chat-primary...

## Recap { #recap }

Use multiple Pydantic models and inherit freely for each case.

    private static final String ACTIVITY_HELPER = "activityHelper";

    private static final String LDAP_MANAGER = "ldapManager";

    private static final String ROLE_QUERY_HELPER = "roleQueryHelper";

    private static final String SUGGEST_HELPER = "suggestHelper";

    private static final String SEARCH_ENGINE_CLIENT = "searchEngineClient";

	globalLocalDrivesMu.RLock()
	localDrives := cloneDrives(globalLocalDrivesMap)
	globalLocalDrivesMu.RUnlock()

	// Initialize sync waitgroup.
	g := errgroup.WithNErrs(len(localDrives))

	// Disk states slices
	beforeState := make([]string, len(localDrives))
	afterState := make([]string, len(localDrives))

	// Make a volume entry on all underlying storage disks.
	for index := range localDrives {

tn.us
tx.us
ut.us
vi.us
vt.us
va.us
wa.us
wi.us
wv.us
wy.us
// The registrar notes several more specific domains available in each state,
// such as state.*.us, dst.*.us, etc., but resolution of these is somewhat
// haphazard; in some states these domains resolve as addresses, while in others
// only subdomains are available, or even nothing at all. We include the

        regA(builder);
        return builder;
    }

    protected StatsAggregationBuilder regStatsA(String name, String field) {
        StatsAggregationBuilder builder = AggregationBuilders.stats(name).field(field);
        regA(builder);
        return builder;
    }

    protected PercentilesAggregationBuilder regPercentilesA(String name, String field) {

/// check

So, with the same Python type declaration, **FastAPI** gives you data validation.

Notice that the error also clearly states exactly the point where the validation didn't pass.

This is incredibly helpful while developing and debugging code that interacts with your API.

///

## Documentation { #documentation }