Partially update a rate of the specified rateplan for a defined business day.

The hetras API is using this <a href="https://developer.hetras.com/docs/patch" onfocus="this.blur()" target="_blank">Patch Specification</a> to partially update an existing resource. Currently this call only allows to set the base price for non-derived rateplans if the rateplan is active and already loaded for the specified business day. <br /><br /> A request example:<br /><pre> [ { "op": "replace", "path": "/base_price", "value": 120.00 } ] </pre><br /> For more details on how the API responds to errors please check our documentation on <a href="https://developer.hetras.com/docs/errors/" onfocus="this.blur()">Error Handling</a>.<br />