chore: use java text block

Author: kuhe

smithy-typescript-codegen-test/model/weather/main.smithy

@@ -167,17 +167,17 @@ apply GetCity @httpResponseTests([
         code: 200
         body: """
             {
-                "name": "Seattle",
-                "coordinates": {
-                    "latitude": 12.34,
-                    "longitude": -56.78
-                },
-                "city": {
-                    "cityId": "123",
-                    "name": "Seattle",
-                    "number": "One",
-                    "case": "Upper"
-                }
+            "name": "Seattle",
+            "coordinates": {
+            "latitude": 12.34,
+            "longitude": -56.78
+            },
+            "city": {
+            "cityId": "123",
+            "name": "Seattle",
+            "number": "One",
+            "case": "Upper"
+            }
             }"""
         bodyMediaType: "application/json"
         params: {
@@ -259,8 +259,8 @@ apply NoSuchResource @httpResponseTests([
         code: 404
         body: """
             {
-                "resourceType": "City",
-                "message": "Your custom message"
+            "resourceType": "City",
+            "message": "Your custom message"
             }"""
         bodyMediaType: "application/json"
         params: { resourceType: "City", message: "Your custom message" }

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

@@ -100,25 +100,24 @@ public void run() {
                 ).orElse(true);
                 if (inputOptional) {
                     writer.addImport("OptionalParameter", null, TypeScriptDependency.SMITHY_TYPES);
-                    writer.write("""
-                        $L(): Promise<$T>;""", methodName, output);
+                    writer.write("$L(): Promise<$T>;", methodName, output);
                 }
                 writer.write("""
-                    $L(
-                      args: $T,
-                      options?: $T,
-                    ): Promise<$T>;""", methodName, input, applicationProtocol.getOptionsType(), output);
-                writer.write("""
-                    $L(
-                      args: $T,
-                      cb: (err: any, data?: $T) => void
-                    ): void;""", methodName, input, output);
-                writer.write("""
-                    $L(
-                      args: $T,
-                      options: $T,
-                      cb: (err: any, data?: $T) => void
-                    ): void;""", methodName, input, applicationProtocol.getOptionsType(), output);
+                    $1L(
+                      args: $2T,
+                      options?: $3T,
+                    ): Promise<$4T>;
+                    $1L(
+                      args: $2T,
+                      cb: (err: any, data?: $4T) => void
+                    ): void;
+                    $1L(
+                      args: $2T,
+                      options: $3T,
+                      cb: (err: any, data?: $4T) => void
+                    ): void;""",
+                    methodName, input, applicationProtocol.getOptionsType(), output
+                );
                 writer.write("");
             }
         });