How to set description to AP.jira.openCreateIssueDialog(issue)


I am using jira cloud API to create the issue.
I can able to set the text to the description field, but I am unable to use API, I mean, set description field value as document object.

How to set description to AP.jira.openCreateIssueDialog(issue)?
I appreciate all your opinions and suggestions.

Kiran. M