public DescribeGroupResult withExternalIds(ExternalId... externalIds) {
        if (this.externalIds == null) {
            setExternalIds(new java.util.ArrayList<ExternalId>(externalIds.length));
        }
        for (ExternalId ele : externalIds) {
            this.externalIds.add(ele);
        }
        return this;
    }
<p>
A list of <code>ExternalId</code> objects that contains the identifiers issued to this resource by an external
identity provider.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setExternalIds(java.util.Collection)} or {@link #withExternalIds(java.util.Collection)} if you want to
override the existing values.
</p>

@param externalIds
       A list of <code>ExternalId</code> objects that contains the identifiers issued to this resource by an
       external identity provider.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-identitystore/src/main/java/com/amazonaws/services/identitystore/model/DescribeGroupResult.java