input = {
  "num_of_row": 5,
  "delimiter": ",",
  "num_of_column": 6,
  "headers": ["id", "name", "email", "age", "date", "mytime"],
  "column_types": ["id", "name", "email", "number,1,100", "date,2015-01-01,2018-01-01", "time"],
  "fileName": "output.csv"
}