docs: private static void init() throws Exception {
          /*
           * The ProfileCredentialsProvider will return your [default]
           * credential profile by reading from the credentials file located at
           * (~/.aws/credentials).
           */
          ProfileCredentialsProvider credentialsProvider = new ProfileCredentialsProvider();
          try {
              credentialsProvider.getCredentials();
          } catch (Exception e) {
              throw new AmazonClientException(
                      "Cannot load the credentials from the credential profiles file. " +
                      "Please make sure that your credentials file is at the correct " +
                      "location (~/.aws/credentials), and is in valid format.",
                      e);
          }
          dynamoDB = AmazonDynamoDBClientBuilder.standard()
              .withCredentials(credentialsProvider)
              .withRegion("us-west-2")
              .build();
      }