public String getGrantType() {
        return this.grantType;
    }
<p>
Supports the following OAuth grant types: Authorization Code, Refresh Token, JWT Bearer, and Token Exchange.
Specify one of the following values, depending on the grant type that you want:
</p>
<p>
* Authorization Code - <code>authorization_code</code>
</p>
<p>
* Refresh Token - <code>refresh_token</code>
</p>
<p>
* JWT Bearer - <code>urn:ietf:params:oauth:grant-type:jwt-bearer</code>
</p>
<p>
* Token Exchange - <code>urn:ietf:params:oauth:grant-type:token-exchange</code>
</p>

@return Supports the following OAuth grant types: Authorization Code, Refresh Token, JWT Bearer, and Token
        Exchange. Specify one of the following values, depending on the grant type that you want:</p>
        <p>
        Authorization Code - <code>authorization_code</code>
        </p>
        <p>
        Refresh Token - <code>refresh_token</code>
        </p>
        <p>
        JWT Bearer - <code>urn:ietf:params:oauth:grant-type:jwt-bearer</code>
        </p>
        <p>
        Token Exchange - <code>urn:ietf:params:oauth:grant-type:token-exchange</code>
aws-java-sdk-ssooidc/src/main/java/com/amazonaws/services/ssooidc/model/CreateTokenWithIAMRequest.java