public void setIamActionDefinition(IamActionDefinition iamActionDefinition) {
        this.iamActionDefinition = iamActionDefinition;
    }
<p>
The Identity and Access Management (IAM) action definition details.
</p>

@param iamActionDefinition
       The Identity and Access Management (IAM) action definition details.
aws-java-sdk-budgets/src/main/java/com/amazonaws/services/budgets/model/Definition.java