public GetFunctionEventInvokeConfigRequest withQualifier(String qualifier) {
        setQualifier(qualifier);
        return this;
    }
<p>
A version number or alias name.
</p>

@param qualifier
       A version number or alias name.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-lambda/src/main/java/com/amazonaws/services/lambda/model/GetFunctionEventInvokeConfigRequest.java