public SupportedInstanceType withIs64BitsOnly(Boolean is64BitsOnly) {
        setIs64BitsOnly(is64BitsOnly);
        return this;
    }
<p>
Indicates whether the <code>SupportedInstanceType</code> only supports 64-bit architecture.
</p>

@param is64BitsOnly
       Indicates whether the <code>SupportedInstanceType</code> only supports 64-bit architecture.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/SupportedInstanceType.java