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-rw-r--r--cli/tsc/dts/lib.decorators.legacy.d.ts2
1 files changed, 1 insertions, 1 deletions
diff --git a/cli/tsc/dts/lib.decorators.legacy.d.ts b/cli/tsc/dts/lib.decorators.legacy.d.ts
index 39bf2413e..26fbcb526 100644
--- a/cli/tsc/dts/lib.decorators.legacy.d.ts
+++ b/cli/tsc/dts/lib.decorators.legacy.d.ts
@@ -19,4 +19,4 @@ and limitations under the License.
declare type ClassDecorator = <TFunction extends Function>(target: TFunction) => TFunction | void;
declare type PropertyDecorator = (target: Object, propertyKey: string | symbol) => void;
declare type MethodDecorator = <T>(target: Object, propertyKey: string | symbol, descriptor: TypedPropertyDescriptor<T>) => TypedPropertyDescriptor<T> | void;
-declare type ParameterDecorator = (target: Object, propertyKey: string | symbol, parameterIndex: number) => void;
+declare type ParameterDecorator = (target: Object, propertyKey: string | symbol | undefined, parameterIndex: number) => void;