public PutMethodResponseResult addResponseParametersEntry(String key, Boolean value) {
        if (null == this.responseParameters) {
            this.responseParameters = new java.util.HashMap<String, Boolean>();
        }
        if (this.responseParameters.containsKey(key))
            throw new IllegalArgumentException("Duplicated keys (" + key.toString() + ") are provided.");
        this.responseParameters.put(key, value);
        return this;
    }
Add a single ResponseParameters entry

@see PutMethodResponseResult#withResponseParameters
@returns a reference to this object so that method calls can be chained together.
aws-java-sdk-api-gateway/src/main/java/com/amazonaws/services/apigateway/model/PutMethodResponseResult.java