public BedrockFoundationModelConfiguration withModelArn(String modelArn) {
        setModelArn(modelArn);
        return this;
    }
<p>
The model's ARN.
</p>

@param modelArn
       The model's ARN.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-bedrockagent/src/main/java/com/amazonaws/services/bedrockagent/model/BedrockFoundationModelConfiguration.java