public Activation withRegistrationsCount(Integer registrationsCount) {
        setRegistrationsCount(registrationsCount);
        return this;
    }
<p>
The number of managed nodes already registered with this activation.
</p>

@param registrationsCount
       The number of managed nodes already registered with this activation.
@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/Activation.java