@CanIgnoreReturnValue
    public EmailMessageBodyBuilder addParameter(final String key, final Object object) {
        parameters.put(key, object);
        return this;
    }
Add parameter.

@param key    the key
@param object the object
@return the email message body builder
core/cas-server-core-notifications-api/src/main/java/org/apereo/cas/notifications/mail/EmailMessageBodyBuilder.java