public String getCodeVerifier() {
        return this.codeVerifier;
    }
<p>
Used only when calling this API for the Authorization Code grant type. This value is generated by the client and
presented to validate the original code challenge value the client passed at authorization time.
</p>

@return Used only when calling this API for the Authorization Code grant type. This value is generated by the
        client and presented to validate the original code challenge value the client passed at authorization
        time.
aws-java-sdk-ssooidc/src/main/java/com/amazonaws/services/ssooidc/model/CreateTokenWithIAMRequest.java