public void setKeyMaterialType(String keyMaterialType) {
        this.keyMaterialType = keyMaterialType;
    }
<p>
The key block format type (for example, TR-34 or TR-31) to use during key material export. Export token is only
required for a TR-34 key export, <code>TR34_KEY_BLOCK</code>. Export token is not required for TR-31 key export.
</p>

@param keyMaterialType
       The key block format type (for example, TR-34 or TR-31) to use during key material export. Export token is
       only required for a TR-34 key export, <code>TR34_KEY_BLOCK</code>. Export token is not required for TR-31
       key export.
@see KeyMaterialType
aws-java-sdk-paymentcryptography/src/main/java/com/amazonaws/services/paymentcryptography/model/GetParametersForExportRequest.java