not getting full heading in response #46

Hello,

i used below code for get survey response as dataframe,

raw_data <- call_limer(method = "export_responses",
params = list(iSurveyID = 12345,
sDocumentType = "csv",
sLanguageCode = "en",
sCompletionStatus = "complete",
sHeadingType = "code",
sResponseType = "long"))
base64_to_df(raw_data)

but I get only question code as column name of dataframe , I'm not getting full question.
how can I get full question as column name of dataframe...
Please help

Thanks
dipen