public RobotApplicationConfig withTools(Tool... tools) {
        if (this.tools == null) {
            setTools(new java.util.ArrayList<Tool>(tools.length));
        }
        for (Tool ele : tools) {
            this.tools.add(ele);
        }
        return this;
    }
<p>
Information about tools configured for the robot application.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setTools(java.util.Collection)} or {@link #withTools(java.util.Collection)} if you want to override the
existing values.
</p>

@param tools
       Information about tools configured for the robot application.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-robomaker/src/main/java/com/amazonaws/services/robomaker/model/RobotApplicationConfig.java