@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getGrantToken() != null)
            sb.append("GrantToken: ").append(getGrantToken()).append(",");
        if (getKeyId() != null)
            sb.append("KeyId: ").append(getKeyId()).append(",");
        if (getGrantId() != null)
            sb.append("GrantId: ").append(getGrantId()).append(",");
        if (getDryRun() != null)
            sb.append("DryRun: ").append(getDryRun());
        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-kms/src/main/java/com/amazonaws/services/kms/model/RetireGrantRequest.java