public SpekeKeyProvider withSystemIds(String... systemIds) {
        if (this.systemIds == null) {
            setSystemIds(new java.util.ArrayList<String>(systemIds.length));
        }
        for (String ele : systemIds) {
            this.systemIds.add(ele);
        }
        return this;
    }
Relates to SPEKE implementation. DRM system identifiers. DASH output groups support a max of two system ids.
Other group types support one system id. See https://dashif.org/identifiers/content_protection/ for more details.
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setSystemIds(java.util.Collection)} or {@link #withSystemIds(java.util.Collection)} if you want to
override the existing values.
</p>

@param systemIds
       Relates to SPEKE implementation. DRM system identifiers. DASH output groups support a max of two system
       ids. Other group types support one system id. See https://dashif.org/identifiers/content_protection/ for
       more details.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/SpekeKeyProvider.java