No documentation for `singleSendApi`

As the title reads, could you provide documentation in the README to use the hubspotClient.marketing.transactional.singleSendApi.sendEmail method?

[ksvirkou-hubspot]

I don’t understand you every request has an example with sdk for example Single_Send

const hubspot = require('@hubspot/api-client');

const hubspotClient = new hubspot.Client({"apiKey":"YOUR_HUBSPOT_API_KEY"});

const message = {
  "from": "string",
  "to": "string",
  "sendId": "string",
  "replyTo": [
    "string"
  ],
  "cc": [
    "string"
  ],
  "bcc": [
    "string"
  ]
};
const contactProperties = {
  "additionalProp1": "string",
  "additionalProp2": "string",
  "additionalProp3": "string"
};
const customProperties = {};
const PublicSingleSendRequestEgg = { message, contactProperties, customProperties, emailId: 0 };

try {
  const apiResponse = await hubspotClient.marketing.transactional.singleEmail.send.singleSendApi.sendEmail(PublicSingleSendRequestEgg);
  console.log(JSON.stringify(apiResponse.body, null, 2));
} catch (e) {
  e.message === 'HTTP request failed'
    ? console.error(JSON.stringify(e.response, null, 2))
    : console.error(e)
}

[royhadad]

@AquiGorka I am also struggling with this problem, did you figure it out?