You can set the '_ascend_uid' cookie for retrieval before the Ascend snippet is loaded in the following manner:

// Name of cookie var key = "_ascend_uid";var value = `${uid}:${timestamp}`;    

// Example: 2018051002_1537992560:1989408272952document.cookie = key + "=" + value;

// Example: _ascend_uid=2018051002_1537992560:1989408272952
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