public SMSMessage withSubstitutions(java.util.Map<String, java.util.List<String>> substitutions) {
        setSubstitutions(substitutions);
        return this;
    }
<p>
The message variables to use in the SMS message. You can override the default variables with individual address
variables.
</p>

@param substitutions
       The message variables to use in the SMS message. You can override the default variables with individual
       address variables.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-pinpoint/src/main/java/com/amazonaws/services/pinpoint/model/SMSMessage.java