fix: type compatibility between command schema and type transforms (smithy-lang#1606)

Author: kuhe

.changeset/fair-news-beg.md

@@ -0,0 +1,5 @@
+---
+"@smithy/types": patch
+---
+
+fix Command interface compatibility with type transformers

packages/types/src/command.ts

@@ -1,6 +1,5 @@
 import { Handler, MiddlewareStack } from "./middleware";
 import { MetadataBearer } from "./response";
-import { OperationSchema } from "./schema/schema";
 
 /**
  * @public
@@ -14,7 +13,11 @@ export interface Command<
 > extends CommandIO<InputType, OutputType> {
   readonly input: InputType;
   readonly middlewareStack: MiddlewareStack<InputType, OutputType>;
-  readonly schema?: OperationSchema;
+  /**
+   * This should be OperationSchema from @smithy/types, but would
+   * create problems with the client transform type adaptors.
+   */
+  readonly schema?: any;
 
   resolveMiddleware(
     stack: MiddlewareStack<ClientInput, ClientOutput>,