public Ipam withOperatingRegions(IpamOperatingRegion... operatingRegions) {
        if (this.operatingRegions == null) {
            setOperatingRegions(new com.amazonaws.internal.SdkInternalList<IpamOperatingRegion>(operatingRegions.length));
        }
        for (IpamOperatingRegion ele : operatingRegions) {
            this.operatingRegions.add(ele);
        }
        return this;
    }
<p>
The operating Regions for an IPAM. Operating Regions are Amazon Web Services Regions where the IPAM is allowed to
manage IP address CIDRs. IPAM only discovers and monitors resources in the Amazon Web Services Regions you select
as operating Regions.
</p>
<p>
For more information about operating Regions, see <a
href="https://docs.aws.amazon.com/vpc/latest/ipam/create-ipam.html">Create an IPAM</a> in the <i>Amazon VPC IPAM
User Guide</i>.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setOperatingRegions(java.util.Collection)} or {@link #withOperatingRegions(java.util.Collection)} if you
want to override the existing values.
</p>

@param operatingRegions
       The operating Regions for an IPAM. Operating Regions are Amazon Web Services Regions where the IPAM is
       allowed to manage IP address CIDRs. IPAM only discovers and monitors resources in the Amazon Web Services
       Regions you select as operating Regions.</p>
       <p>
       For more information about operating Regions, see <a
       href="https://docs.aws.amazon.com/vpc/latest/ipam/create-ipam.html">Create an IPAM</a> in the <i>Amazon
       VPC IPAM User Guide</i>.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/Ipam.java