BIOutput Data Source. refresh Token Method
Get the refreshToken property: A refresh token that can be used to obtain a valid access token that can then be used to authenticate with the data source. A valid refresh token is currently only obtainable via the Azure Portal. It is recommended to put a dummy string value here when creating the data source and then going to the Azure Portal to authenticate the data source which will update this property with a valid refresh token. Required on PUT (CreateOrReplace) requests.
public String refreshToken()
the refreshToken value.