Changes after review

Author: meyertst-aws

swift/example_code/iam/README.md

@@ -33,7 +33,7 @@ For prerequisites, see the [README](../../README.md#Prerequisites) in the `swift
 
 Code excerpts that show you how to call individual service functions.
 
-- [AttachRolePolicy](AttachRolePolicy/Sources/ServiceHandler/ServiceHandler.swift#L58)
+- [AttachRolePolicy](AttachRolePolicy/Sources/ServiceHandler/ServiceHandler.swift#L50)
 - [CreateAccessKey](basics/Sources/ServiceHandler/ServiceHandlerIAM.swift#L185)
 - [CreatePolicy](basics/Sources/ServiceHandler/ServiceHandlerIAM.swift#L212)
 - [CreateRole](CreateRole/Sources/ServiceHandler/ServiceHandler.swift#L50)

swift/example_code/iam/basics/Sources/ServiceHandler/ServiceHandlerIAM.swift

@@ -47,7 +47,7 @@ public class ServiceHandlerIAM {
                     throw ServiceHandlerError.authError
                 }
 
-                let credentials: AWSCredentialIdentity = .init(
+                let credentials: AWSCredentialIdentity = AWSCredentialIdentity(
                     accessKey: keyId,
                     secret: secretKey,
                     sessionToken: sessionToken
@@ -87,7 +87,7 @@ public class ServiceHandlerIAM {
             // token to generate a static credentials provider suitable for
             // use when initializing an IAM client.
 
-            let credentials: AWSCredentialIdentity = .init(
+            let credentials: AWSCredentialIdentity = AWSCredentialIdentity(
                 accessKey: accessKeyId,
                 secret: secretAccessKey,
                 sessionToken: sessionToken

swift/example_code/iam/basics/Sources/ServiceHandler/ServiceHandlerS3.swift

@@ -104,7 +104,7 @@ public class ServiceHandlerS3 {
             // to generate a static credentials provider suitable for use when
             // initializing an Amazon S3 client.
 
-            let credentials: AWSCredentialIdentity = .init(
+            let credentials: AWSCredentialIdentity = AWSCredentialIdentity(
                 accessKey: accessKeyId,
                 secret: secretAccessKey,
                 sessionToken: sessionToken

swift/example_code/iam/basics/Sources/ServiceHandler/ServiceHandlerSTS.swift

@@ -21,7 +21,7 @@ import AWSSDKIdentity
 /// A class providing functions for interacting with the AWS Security Token
 /// Service (AWS STS).
 public class ServiceHandlerSTS {
-    /// The AWS Region to use for AWS STS operations, when set.
+    /// The optional AWS Region to use for AWS STS operations.
     let region: String?
 
     /// The STSClient used to interact with AWS STS.