public CreateChimeWebhookConfigurationRequest withIamRoleArn(String iamRoleArn) {
        setIamRoleArn(iamRoleArn);
        return this;
    }
This is a user-defined role that AWS Chatbot will assume. This is not the service-linked role. For more
information, see IAM Policies for AWS Chatbot.

@param iamRoleArn
       This is a user-defined role that AWS Chatbot will assume. This is not the service-linked role. For more
       information, see IAM Policies for AWS Chatbot.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-chatbot/src/main/java/com/amazonaws/services/chatbot/model/CreateChimeWebhookConfigurationRequest.java