public String getPrincipalArn() {
        return this.principalArn;
    }
<p>
The Amazon Resource Name (ARN) of the SAML provider in IAM that describes the IdP.
</p>

@return The Amazon Resource Name (ARN) of the SAML provider in IAM that describes the IdP.
aws-java-sdk-sts/src/main/java/com/amazonaws/services/securitytoken/model/AssumeRoleWithSAMLRequest.java