public PatchRuleGroup withPatchRules(PatchRule... patchRules) {
        if (this.patchRules == null) {
            setPatchRules(new com.amazonaws.internal.SdkInternalList<PatchRule>(patchRules.length));
        }
        for (PatchRule ele : patchRules) {
            this.patchRules.add(ele);
        }
        return this;
    }
<p>
The rules that make up the rule group.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setPatchRules(java.util.Collection)} or {@link #withPatchRules(java.util.Collection)} if you want to
override the existing values.
</p>

@param patchRules
       The rules that make up the rule group.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/PatchRuleGroup.java