Add packageDocumentation and improve interface inheritance

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

@@ -362,6 +362,9 @@ private void generateCommandMiddlewareResolver(String configType) {
     }
 
     private void addInputAndOutputTypes() {
+        writer.writeDocs("@public");
+        writer.write("export { __MetadataBearer, $$Command };");
+
         writeInputType(inputType.getName(), operationIndex.getInput(operation), symbol.getName());
         writeOutputType(outputType.getName(), operationIndex.getOutput(operation), symbol.getName());
         writer.write("");

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

@@ -25,6 +25,7 @@
 import software.amazon.smithy.model.knowledge.TopDownIndex;
 import software.amazon.smithy.model.shapes.OperationShape;
 import software.amazon.smithy.model.shapes.ServiceShape;
+import software.amazon.smithy.model.traits.DocumentationTrait;
 import software.amazon.smithy.model.traits.PaginatedTrait;
 import software.amazon.smithy.typescript.codegen.integration.ProtocolGenerator;
 import software.amazon.smithy.utils.SmithyInternalApi;
@@ -45,6 +46,12 @@ static void writeIndex(
         ProtocolGenerator protocolGenerator,
         TypeScriptWriter writer
     ) {
+
+        writer.write("/* eslint-disable */");
+        settings.getService(model).getTrait(DocumentationTrait.class).ifPresent(trait ->
+                writer.writeDocs(trait.getValue() + "\n\n" + "@packageDocumentation"));
+
+
         if (settings.generateClient()) {
             writeClientExports(settings, model, symbolProvider, writer);
         }

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

@@ -98,6 +98,7 @@ static String getResolvedConfigTypeName(Symbol symbol) {
     @Override
     public void run() {
         writer.addImport("Client", "__Client", "@aws-sdk/smithy-client");
+        writer.write("export { __Client }\n");
         writer.addImport("getRuntimeConfig", "__getRuntimeConfig",
             Paths.get(".", CodegenUtils.SOURCE_FOLDER, "runtimeConfig").toString());
 
@@ -162,7 +163,7 @@ private void generateConfig() {
         writer.writeDocs("@public");
         // The default configuration type is always just the base-level
         // Smithy configuration requirements.
-        writer.write("type $LType = Partial<__SmithyConfiguration<$T>>", configType,
+        writer.write("export type $LType = Partial<__SmithyConfiguration<$T>>", configType,
                 applicationProtocol.getOptionsType());
         writer.write("  & ClientDefaults");
 
@@ -197,7 +198,7 @@ private void generateConfig() {
         // each "Input" configuration type.
         writer.write("");
         writer.writeDocs("@public");
-        writer.write("type $LType = __SmithyResolvedConfiguration<$T>",
+        writer.write("export type $LType = __SmithyResolvedConfiguration<$T>",
                      resolvedConfigType, applicationProtocol.getOptionsType());
         writer.write("  & Required<ClientDefaults>");
 

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/integration/AddBaseServiceExceptionClass.java

@@ -67,6 +67,9 @@ private void writeAdditionalFiles(
                                     TypeScriptDependency.AWS_SMITHY_CLIENT.packageName);
                             writer.addImport("ServiceExceptionOptions", "__ServiceExceptionOptions",
                                     TypeScriptDependency.AWS_SMITHY_CLIENT.packageName);
+                            // Export ServiceException information to allow
+                            //      documentation inheritance to consume their types
+                            writer.write("export { __ServiceException, __ServiceExceptionOptions }\n");
                             writer.writeDocs("@public\n\nBase exception class for all service exceptions from "
                                     + serviceName + " service.");
                             writer.openBlock("export class $L extends __ServiceException {", serviceExceptionName);