import SmithyException, isa and DocumentType from smithy-client instead of lib/smithy

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/CodegenVisitor.java

@@ -53,7 +53,6 @@ class CodegenVisitor extends ShapeVisitor.Default<Void> {
 
     /** A mapping of static resource files to copy over to a new filename. */
     private static final Map<String, String> STATIC_FILE_COPIES = MapUtils.of(
-            "lib/smithy.ts", "smithy.ts",
             "tsconfig.es.json", "tsconfig.es.json",
             "tsconfig.json", "tsconfig.json",
             "tsconfig.test.json", "tsconfig.test.json"

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/StructureGenerator.java

@@ -68,7 +68,7 @@ public void run() {
      * <p>The following TypeScript is rendered:
      *
      * <pre>{@code
-     * import * as _smithy from "../lib/smithy";
+     * import * as _smithy from "@aws-sdk/smithy-client";
      *
      * export interface Person {
      *   __type?: "Person";
@@ -128,7 +128,7 @@ private void renderNonErrorStructure() {
      * <p>The following TypeScript is generated:
      *
      * <pre>{@code
-     * import * as _smithy from "../lib/smithy";
+     * import * as _smithy from "@aws-sdk/smithy-client";
      *
      * export interface NoSuchResource extends _smithy.SmithyException, $MetadataBearer {
      *   __type: "NoSuchResource";

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/SymbolVisitor.java

@@ -280,7 +280,7 @@ public Symbol structureShape(StructureShape shape) {
     private Symbol.Builder addSmithyImport(Symbol.Builder builder) {
         Symbol importSymbol = Symbol.builder()
                 .name("*")
-                .namespace("./lib/smithy", "/")
+                .namespace("@aws-sdk/smithy-client", "/")
                 .build();
         SymbolReference reference = SymbolReference.builder()
                 .symbol(importSymbol)