@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getApiMappingSelectionExpression() != null)
            sb.append("ApiMappingSelectionExpression: ").append(getApiMappingSelectionExpression()).append(",");
        if (getDomainName() != null)
            sb.append("DomainName: ").append(getDomainName()).append(",");
        if (getDomainNameConfigurations() != null)
            sb.append("DomainNameConfigurations: ").append(getDomainNameConfigurations()).append(",");
        if (getMutualTlsAuthentication() != null)
            sb.append("MutualTlsAuthentication: ").append(getMutualTlsAuthentication()).append(",");
        if (getTags() != null)
            sb.append("Tags: ").append(getTags());
        sb.append("}");
        return sb.toString();
    }
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be
redacted from this string using a placeholder value.

@return A string representation of this object.

@see java.lang.Object#toString()
aws-java-sdk-apigatewayv2/src/main/java/com/amazonaws/services/apigatewayv2/model/CreateDomainNameResult.java