How do I get the data_type of each column that I retrieve from a page using New Extractor in import.io?

Question

I am working on import.io and I am using New Extractor to retrieve data from the site. I create different types of columns and paste the contents into it. After that I publish this data. I received the data in JSON format. But the data in JSON format does not give me data_type columns, this means that this column is in what format, is it text or image or any other format. So how do I get data_type columns using New Extractor Please help me?