public void setPrincipal(EntityIdentifier principal) {
        this.principal = principal;
    }
<p>
The identifier of the principal in the ID or access token.
</p>

@param principal
       The identifier of the principal in the ID or access token.
aws-java-sdk-verifiedpermissions/src/main/java/com/amazonaws/services/verifiedpermissions/model/BatchIsAuthorizedWithTokenResult.java