1#[derive(::std::clone::Clone, ::std::default::Default, ::std::fmt::Debug)]
4#[non_exhaustive]
5pub struct UpdateClusterConfig;
6impl UpdateClusterConfig {
7 pub fn new() -> Self {
9 Self
10 }
11 pub(crate) async fn orchestrate(
12 runtime_plugins: &::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins,
13 input: crate::operation::update_cluster_config::UpdateClusterConfigInput,
14 ) -> ::std::result::Result<
15 crate::operation::update_cluster_config::UpdateClusterConfigOutput,
16 ::aws_smithy_runtime_api::client::result::SdkError<
17 crate::operation::update_cluster_config::UpdateClusterConfigError,
18 ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
19 >,
20 > {
21 let map_err = |err: ::aws_smithy_runtime_api::client::result::SdkError<
22 ::aws_smithy_runtime_api::client::interceptors::context::Error,
23 ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
24 >| {
25 err.map_service_error(|err| {
26 err.downcast::<crate::operation::update_cluster_config::UpdateClusterConfigError>()
27 .expect("correct error type")
28 })
29 };
30 let context = Self::orchestrate_with_stop_point(runtime_plugins, input, ::aws_smithy_runtime::client::orchestrator::StopPoint::None)
31 .await
32 .map_err(map_err)?;
33 let output = context.finalize().map_err(map_err)?;
34 ::std::result::Result::Ok(
35 output
36 .downcast::<crate::operation::update_cluster_config::UpdateClusterConfigOutput>()
37 .expect("correct output type"),
38 )
39 }
40
41 pub(crate) async fn orchestrate_with_stop_point(
42 runtime_plugins: &::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins,
43 input: crate::operation::update_cluster_config::UpdateClusterConfigInput,
44 stop_point: ::aws_smithy_runtime::client::orchestrator::StopPoint,
45 ) -> ::std::result::Result<
46 ::aws_smithy_runtime_api::client::interceptors::context::InterceptorContext,
47 ::aws_smithy_runtime_api::client::result::SdkError<
48 ::aws_smithy_runtime_api::client::interceptors::context::Error,
49 ::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
50 >,
51 > {
52 let input = ::aws_smithy_runtime_api::client::interceptors::context::Input::erase(input);
53 use ::tracing::Instrument;
54 ::aws_smithy_runtime::client::orchestrator::invoke_with_stop_point("EKS", "UpdateClusterConfig", input, runtime_plugins, stop_point)
55 .instrument(::tracing::debug_span!(
58 "EKS.UpdateClusterConfig",
59 "rpc.service" = "EKS",
60 "rpc.method" = "UpdateClusterConfig",
61 "sdk_invocation_id" = ::fastrand::u32(1_000_000..10_000_000),
62 "rpc.system" = "aws-api",
63 ))
64 .await
65 }
66
67 pub(crate) fn operation_runtime_plugins(
68 client_runtime_plugins: ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins,
69 client_config: &crate::config::Config,
70 config_override: ::std::option::Option<crate::config::Builder>,
71 ) -> ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugins {
72 let mut runtime_plugins = client_runtime_plugins.with_operation_plugin(Self::new());
73 runtime_plugins = runtime_plugins.with_operation_plugin(crate::client_idempotency_token::IdempotencyTokenRuntimePlugin::new(
74 |token_provider, input| {
75 let input: &mut crate::operation::update_cluster_config::UpdateClusterConfigInput = input.downcast_mut().expect("correct type");
76 if input.client_request_token.is_none() {
77 input.client_request_token = ::std::option::Option::Some(token_provider.make_idempotency_token());
78 }
79 },
80 ));
81 if let ::std::option::Option::Some(config_override) = config_override {
82 for plugin in config_override.runtime_plugins.iter().cloned() {
83 runtime_plugins = runtime_plugins.with_operation_plugin(plugin);
84 }
85 runtime_plugins = runtime_plugins.with_operation_plugin(crate::config::ConfigOverrideRuntimePlugin::new(
86 config_override,
87 client_config.config.clone(),
88 &client_config.runtime_components,
89 ));
90 }
91 runtime_plugins
92 }
93}
94impl ::aws_smithy_runtime_api::client::runtime_plugin::RuntimePlugin for UpdateClusterConfig {
95 fn config(&self) -> ::std::option::Option<::aws_smithy_types::config_bag::FrozenLayer> {
96 let mut cfg = ::aws_smithy_types::config_bag::Layer::new("UpdateClusterConfig");
97
98 cfg.store_put(::aws_smithy_runtime_api::client::ser_de::SharedRequestSerializer::new(
99 UpdateClusterConfigRequestSerializer,
100 ));
101 cfg.store_put(::aws_smithy_runtime_api::client::ser_de::SharedResponseDeserializer::new(
102 UpdateClusterConfigResponseDeserializer,
103 ));
104
105 cfg.store_put(::aws_smithy_runtime_api::client::auth::AuthSchemeOptionResolverParams::new(
106 crate::config::auth::Params::builder()
107 .operation_name("UpdateClusterConfig")
108 .build()
109 .expect("required fields set"),
110 ));
111
112 cfg.store_put(::aws_smithy_runtime_api::client::orchestrator::Metadata::new(
113 "UpdateClusterConfig",
114 "EKS",
115 ));
116 let mut signing_options = ::aws_runtime::auth::SigningOptions::default();
117 signing_options.double_uri_encode = true;
118 signing_options.content_sha256_header = false;
119 signing_options.normalize_uri_path = true;
120 signing_options.payload_override = None;
121
122 cfg.store_put(::aws_runtime::auth::SigV4OperationSigningConfig {
123 signing_options,
124 ..::std::default::Default::default()
125 });
126
127 ::std::option::Option::Some(cfg.freeze())
128 }
129
130 fn runtime_components(
131 &self,
132 _: &::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder,
133 ) -> ::std::borrow::Cow<'_, ::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder> {
134 #[allow(unused_mut)]
135 let mut rcb = ::aws_smithy_runtime_api::client::runtime_components::RuntimeComponentsBuilder::new("UpdateClusterConfig")
136 .with_interceptor(::aws_smithy_runtime_api::client::interceptors::SharedInterceptor::permanent(
137 UpdateClusterConfigTelemetryInputCaptureInterceptor,
138 ))
139 .with_interceptor(::aws_smithy_runtime_api::client::interceptors::SharedInterceptor::permanent(
140 ::aws_smithy_runtime::client::stalled_stream_protection::StalledStreamProtectionInterceptor::default(),
141 ))
142 .with_interceptor(::aws_smithy_runtime_api::client::interceptors::SharedInterceptor::permanent(
143 UpdateClusterConfigEndpointParamsInterceptor,
144 ))
145 .with_retry_classifier(::aws_smithy_runtime::client::retries::classifiers::TransientErrorClassifier::<
146 crate::operation::update_cluster_config::UpdateClusterConfigError,
147 >::new())
148 .with_retry_classifier(::aws_smithy_runtime::client::retries::classifiers::ModeledAsRetryableClassifier::<
149 crate::operation::update_cluster_config::UpdateClusterConfigError,
150 >::new())
151 .with_retry_classifier(::aws_runtime::retries::classifiers::AwsErrorCodeClassifier::<
152 crate::operation::update_cluster_config::UpdateClusterConfigError,
153 >::new());
154
155 ::std::borrow::Cow::Owned(rcb)
156 }
157}
158
159#[derive(Debug)]
160struct UpdateClusterConfigTelemetryInputCaptureInterceptor;
161
162#[::aws_smithy_runtime_api::client::interceptors::dyn_dispatch_hint]
163impl ::aws_smithy_runtime_api::client::interceptors::Intercept for UpdateClusterConfigTelemetryInputCaptureInterceptor {
164 fn name(&self) -> &'static str {
165 "UpdateClusterConfigTelemetryInputCaptureInterceptor"
166 }
167
168 fn read_before_execution(
169 &self,
170 context: &::aws_smithy_runtime_api::client::interceptors::context::BeforeSerializationInterceptorContextRef<
171 '_,
172 ::aws_smithy_runtime_api::client::interceptors::context::Input,
173 ::aws_smithy_runtime_api::client::interceptors::context::Output,
174 ::aws_smithy_runtime_api::client::interceptors::context::Error,
175 >,
176 cfg: &mut ::aws_smithy_types::config_bag::ConfigBag,
177 ) -> ::std::result::Result<(), ::aws_smithy_runtime_api::box_error::BoxError> {
178 let ::std::option::Option::Some(requested) = cfg
180 .load::<::aws_smithy_types::telemetry::RequestedTelemetryAttributes>()
181 .filter(|r| !r.is_empty())
182 else {
183 return ::std::result::Result::Ok(());
184 };
185
186 let ::std::option::Option::Some(input) = context.input().downcast_ref::<UpdateClusterConfigInput>() else {
187 return ::std::result::Result::Ok(());
189 };
190
191 let mut captured = ::aws_smithy_types::telemetry::CapturedTelemetryAttributes::default();
192 if requested.should_capture("name") {
193 if let ::std::option::Option::Some(value) = input.name.as_deref() {
194 captured.insert("name", value);
195 }
196 }
197 if requested.should_capture("clientRequestToken") {
198 if let ::std::option::Option::Some(value) = input.client_request_token.as_deref() {
199 captured.insert("clientRequestToken", value);
200 }
201 }
202
203 cfg.interceptor_state().store_put(captured);
204 ::std::result::Result::Ok(())
205 }
206}
207#[derive(Debug)]
208struct UpdateClusterConfigResponseDeserializer;
209impl ::aws_smithy_runtime_api::client::ser_de::DeserializeResponse for UpdateClusterConfigResponseDeserializer {
210 fn deserialize_nonstreaming_with_config(
211 &self,
212 response: &::aws_smithy_runtime_api::client::orchestrator::HttpResponse,
213 _cfg: &::aws_smithy_types::config_bag::ConfigBag,
214 ) -> ::aws_smithy_runtime_api::client::interceptors::context::OutputOrError {
215 let (success, status) = (response.status().is_success(), response.status().as_u16());
216 let headers = response.headers();
217 let body = response.body().bytes().expect("body loaded");
218 #[allow(unused_mut)]
219 let mut force_error = false;
220 ::tracing::debug!(request_id = ?::aws_types::request_id::RequestId::request_id(response));
221 let parse_result = if !success && status != 200 || force_error {
222 crate::protocol_serde::shape_update_cluster_config::de_update_cluster_config_http_error(status, headers, body)
223 } else {
224 crate::protocol_serde::shape_update_cluster_config::de_update_cluster_config_http_response(status, headers, body)
225 };
226 crate::protocol_serde::type_erase_result(parse_result)
227 }
228}
229#[derive(Debug)]
230struct UpdateClusterConfigRequestSerializer;
231impl ::aws_smithy_runtime_api::client::ser_de::SerializeRequest for UpdateClusterConfigRequestSerializer {
232 #[allow(unused_mut, clippy::let_and_return, clippy::needless_borrow, clippy::useless_conversion)]
233 fn serialize_input(
234 &self,
235 input: ::aws_smithy_runtime_api::client::interceptors::context::Input,
236 _cfg: &mut ::aws_smithy_types::config_bag::ConfigBag,
237 ) -> ::std::result::Result<::aws_smithy_runtime_api::client::orchestrator::HttpRequest, ::aws_smithy_runtime_api::box_error::BoxError> {
238 let input = input
239 .downcast::<crate::operation::update_cluster_config::UpdateClusterConfigInput>()
240 .expect("correct type");
241 let _header_serialization_settings = _cfg
242 .load::<crate::serialization_settings::HeaderSerializationSettings>()
243 .cloned()
244 .unwrap_or_default();
245 let mut request_builder = {
246 #[allow(clippy::uninlined_format_args)]
247 fn uri_base(
248 _input: &crate::operation::update_cluster_config::UpdateClusterConfigInput,
249 output: &mut ::std::string::String,
250 ) -> ::std::result::Result<(), ::aws_smithy_types::error::operation::BuildError> {
251 use ::std::fmt::Write as _;
252 let input_1 = &_input.name;
253 let input_1 = input_1
254 .as_ref()
255 .ok_or_else(|| ::aws_smithy_types::error::operation::BuildError::missing_field("name", "cannot be empty or unset"))?;
256 let name = ::aws_smithy_http::label::fmt_string(input_1, ::aws_smithy_http::label::EncodingStrategy::Default);
257 if name.is_empty() {
258 return ::std::result::Result::Err(::aws_smithy_types::error::operation::BuildError::missing_field(
259 "name",
260 "cannot be empty or unset",
261 ));
262 }
263 ::std::write!(output, "/clusters/{name}/update-config", name = name).expect("formatting should succeed");
264 ::std::result::Result::Ok(())
265 }
266 #[allow(clippy::unnecessary_wraps)]
267 fn update_http_builder(
268 input: &crate::operation::update_cluster_config::UpdateClusterConfigInput,
269 builder: ::http_1x::request::Builder,
270 ) -> ::std::result::Result<::http_1x::request::Builder, ::aws_smithy_types::error::operation::BuildError> {
271 let mut uri = ::std::string::String::new();
272 uri_base(input, &mut uri)?;
273 ::std::result::Result::Ok(builder.method("POST").uri(uri))
274 }
275 let mut builder = update_http_builder(&input, ::http_1x::request::Builder::new())?;
276 builder = _header_serialization_settings.set_default_header(builder, ::http_1x::header::CONTENT_TYPE, "application/json");
277 builder
278 };
279 let body = ::aws_smithy_types::body::SdkBody::from(crate::protocol_serde::shape_update_cluster_config::ser_update_cluster_config_input(
280 &input,
281 )?);
282 if let Some(content_length) = body.content_length() {
283 let content_length = content_length.to_string();
284 request_builder = _header_serialization_settings.set_default_header(request_builder, ::http_1x::header::CONTENT_LENGTH, &content_length);
285 }
286 ::std::result::Result::Ok(request_builder.body(body).expect("valid request").try_into().unwrap())
287 }
288}
289#[derive(Debug)]
290struct UpdateClusterConfigEndpointParamsInterceptor;
291
292#[::aws_smithy_runtime_api::client::interceptors::dyn_dispatch_hint]
293impl ::aws_smithy_runtime_api::client::interceptors::Intercept for UpdateClusterConfigEndpointParamsInterceptor {
294 fn name(&self) -> &'static str {
295 "UpdateClusterConfigEndpointParamsInterceptor"
296 }
297
298 fn read_before_execution(
299 &self,
300 context: &::aws_smithy_runtime_api::client::interceptors::context::BeforeSerializationInterceptorContextRef<
301 '_,
302 ::aws_smithy_runtime_api::client::interceptors::context::Input,
303 ::aws_smithy_runtime_api::client::interceptors::context::Output,
304 ::aws_smithy_runtime_api::client::interceptors::context::Error,
305 >,
306 cfg: &mut ::aws_smithy_types::config_bag::ConfigBag,
307 ) -> ::std::result::Result<(), ::aws_smithy_runtime_api::box_error::BoxError> {
308 let _input = context
309 .input()
310 .downcast_ref::<UpdateClusterConfigInput>()
311 .ok_or("failed to downcast to UpdateClusterConfigInput")?;
312
313 let params = crate::config::endpoint::Params::builder()
314 .set_region(cfg.load::<::aws_types::region::Region>().map(|r| r.as_ref().to_owned()))
315 .set_use_dual_stack(cfg.load::<::aws_types::endpoint_config::UseDualStack>().map(|ty| ty.0))
316 .set_use_fips(cfg.load::<::aws_types::endpoint_config::UseFips>().map(|ty| ty.0))
317 .set_endpoint(cfg.load::<::aws_types::endpoint_config::EndpointUrl>().map(|ty| ty.0.clone()))
318 .build()
319 .map_err(|err| {
320 ::aws_smithy_runtime_api::client::interceptors::error::ContextAttachedError::new("endpoint params could not be built", err)
321 })?;
322 cfg.interceptor_state()
323 .store_put(::aws_smithy_runtime_api::client::endpoint::EndpointResolverParams::new(params));
324 ::std::result::Result::Ok(())
325 }
326}
327
328#[non_exhaustive]
333#[derive(::std::fmt::Debug)]
334pub enum UpdateClusterConfigError {
335 ClientException(crate::types::error::ClientException),
337 InvalidParameterException(crate::types::error::InvalidParameterException),
339 InvalidRequestException(crate::types::error::InvalidRequestException),
341 ResourceInUseException(crate::types::error::ResourceInUseException),
343 ResourceNotFoundException(crate::types::error::ResourceNotFoundException),
345 ServerException(crate::types::error::ServerException),
347 ThrottlingException(crate::types::error::ThrottlingException),
349 #[deprecated(note = "Matching `Unhandled` directly is not forwards compatible. Instead, match using a \
351 variable wildcard pattern and check `.code()`:
352 \
353 `err if err.code() == Some(\"SpecificExceptionCode\") => { /* handle the error */ }`
354 \
355 See [`ProvideErrorMetadata`](#impl-ProvideErrorMetadata-for-UpdateClusterConfigError) for what information is available for the error.")]
356 Unhandled(crate::error::sealed_unhandled::Unhandled),
357}
358impl UpdateClusterConfigError {
359 pub fn unhandled(
361 err: impl ::std::convert::Into<::std::boxed::Box<dyn ::std::error::Error + ::std::marker::Send + ::std::marker::Sync + 'static>>,
362 ) -> Self {
363 Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
364 source: err.into(),
365 meta: ::std::default::Default::default(),
366 })
367 }
368
369 pub fn generic(err: ::aws_smithy_types::error::ErrorMetadata) -> Self {
371 Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
372 source: err.clone().into(),
373 meta: err,
374 })
375 }
376 pub fn meta(&self) -> &::aws_smithy_types::error::ErrorMetadata {
381 match self {
382 Self::ClientException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
383 Self::InvalidParameterException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
384 Self::InvalidRequestException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
385 Self::ResourceInUseException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
386 Self::ResourceNotFoundException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
387 Self::ServerException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
388 Self::ThrottlingException(e) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(e),
389 Self::Unhandled(e) => &e.meta,
390 }
391 }
392 pub fn is_client_exception(&self) -> bool {
394 matches!(self, Self::ClientException(_))
395 }
396 pub fn is_invalid_parameter_exception(&self) -> bool {
398 matches!(self, Self::InvalidParameterException(_))
399 }
400 pub fn is_invalid_request_exception(&self) -> bool {
402 matches!(self, Self::InvalidRequestException(_))
403 }
404 pub fn is_resource_in_use_exception(&self) -> bool {
406 matches!(self, Self::ResourceInUseException(_))
407 }
408 pub fn is_resource_not_found_exception(&self) -> bool {
410 matches!(self, Self::ResourceNotFoundException(_))
411 }
412 pub fn is_server_exception(&self) -> bool {
414 matches!(self, Self::ServerException(_))
415 }
416 pub fn is_throttling_exception(&self) -> bool {
418 matches!(self, Self::ThrottlingException(_))
419 }
420}
421impl ::std::error::Error for UpdateClusterConfigError {
422 fn source(&self) -> ::std::option::Option<&(dyn ::std::error::Error + 'static)> {
423 match self {
424 Self::ClientException(_inner) => ::std::option::Option::Some(_inner),
425 Self::InvalidParameterException(_inner) => ::std::option::Option::Some(_inner),
426 Self::InvalidRequestException(_inner) => ::std::option::Option::Some(_inner),
427 Self::ResourceInUseException(_inner) => ::std::option::Option::Some(_inner),
428 Self::ResourceNotFoundException(_inner) => ::std::option::Option::Some(_inner),
429 Self::ServerException(_inner) => ::std::option::Option::Some(_inner),
430 Self::ThrottlingException(_inner) => ::std::option::Option::Some(_inner),
431 Self::Unhandled(_inner) => ::std::option::Option::Some(&*_inner.source),
432 }
433 }
434}
435impl ::std::fmt::Display for UpdateClusterConfigError {
436 fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
437 match self {
438 Self::ClientException(_inner) => _inner.fmt(f),
439 Self::InvalidParameterException(_inner) => _inner.fmt(f),
440 Self::InvalidRequestException(_inner) => _inner.fmt(f),
441 Self::ResourceInUseException(_inner) => _inner.fmt(f),
442 Self::ResourceNotFoundException(_inner) => _inner.fmt(f),
443 Self::ServerException(_inner) => _inner.fmt(f),
444 Self::ThrottlingException(_inner) => _inner.fmt(f),
445 Self::Unhandled(_inner) => {
446 if let ::std::option::Option::Some(code) = ::aws_smithy_types::error::metadata::ProvideErrorMetadata::code(self) {
447 write!(f, "unhandled error ({code})")
448 } else {
449 f.write_str("unhandled error")
450 }
451 }
452 }
453 }
454}
455impl ::aws_smithy_types::retry::ProvideErrorKind for UpdateClusterConfigError {
456 fn code(&self) -> ::std::option::Option<&str> {
457 ::aws_smithy_types::error::metadata::ProvideErrorMetadata::code(self)
458 }
459 fn retryable_error_kind(&self) -> ::std::option::Option<::aws_smithy_types::retry::ErrorKind> {
460 ::std::option::Option::None
461 }
462}
463impl ::aws_smithy_types::error::metadata::ProvideErrorMetadata for UpdateClusterConfigError {
464 fn meta(&self) -> &::aws_smithy_types::error::ErrorMetadata {
465 match self {
466 Self::ClientException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
467 Self::InvalidParameterException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
468 Self::InvalidRequestException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
469 Self::ResourceInUseException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
470 Self::ResourceNotFoundException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
471 Self::ServerException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
472 Self::ThrottlingException(_inner) => ::aws_smithy_types::error::metadata::ProvideErrorMetadata::meta(_inner),
473 Self::Unhandled(_inner) => &_inner.meta,
474 }
475 }
476}
477impl ::aws_smithy_runtime_api::client::result::CreateUnhandledError for UpdateClusterConfigError {
478 fn create_unhandled_error(
479 source: ::std::boxed::Box<dyn ::std::error::Error + ::std::marker::Send + ::std::marker::Sync + 'static>,
480 meta: ::std::option::Option<::aws_smithy_types::error::ErrorMetadata>,
481 ) -> Self {
482 Self::Unhandled(crate::error::sealed_unhandled::Unhandled {
483 source,
484 meta: meta.unwrap_or_default(),
485 })
486 }
487}
488impl ::aws_types::request_id::RequestId for crate::operation::update_cluster_config::UpdateClusterConfigError {
489 fn request_id(&self) -> Option<&str> {
490 self.meta().request_id()
491 }
492}
493
494pub use crate::operation::update_cluster_config::_update_cluster_config_input::UpdateClusterConfigInput;
495
496pub use crate::operation::update_cluster_config::_update_cluster_config_output::UpdateClusterConfigOutput;
497
498mod _update_cluster_config_input;
499
500mod _update_cluster_config_output;
501
502pub mod builders;