public SpotInstanceRequest withAvailabilityZoneGroup(String availabilityZoneGroup) {
        setAvailabilityZoneGroup(availabilityZoneGroup);
        return this;
    }
<p>
The Availability Zone group. If you specify the same Availability Zone group for all Spot Instance requests, all
Spot Instances are launched in the same Availability Zone.
</p>

@param availabilityZoneGroup
       The Availability Zone group. If you specify the same Availability Zone group for all Spot Instance
       requests, all Spot Instances are launched in the same Availability Zone.
@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/SpotInstanceRequest.java