I have a few custom fields in Jira that also has a description. These descriptions are the keys i will be using to send data to my application for processing using ScriptRunner script.
The description of the field is there in the UI as shown below:

But when i try to retrieve this description using the api, it returns null. Upon revieweing the docs of api, i found that the description field is not there which is causing null value. Is there any other API that I could use to returrn the value of description field?
This is the API I used earlier.