Need API reference to create runner

Bitbucket Development Bitbucket Cloud
,
1

since there is no autoscale yet on runners
we need to be able to dynamically create runner and apply it on our self hosted runner

https://developer.atlassian.com/cloud/bitbucket/rest/intro/#runner-write

there is scope for api create update delete runner api but there is no reference
where could i find the reference

please refer me to the api reference of create update delete runner

Thanks