TypeError for `tab.fetch_data(headers=True)`

[tgig]

Hi there,

Thanks for the great library. I'm having an issue pulling tab data for a column with a header which is formatted as Date. The data looks like this:

day	col1	col2
9/5/1976	1.23	2.34
12/3/1978	3.45	4.56
1/16/2020	5.67	6.78

The entire day column is formatted as Date. When I use the following command, I get the following error:

df = tab.fetch_data(headers=True)

TypeError: Mismatch exists in expected and actual data types for cell with value 'day'. Cell format is 'DATE' but cell value type is '<class 'str'>'. To correct this, in Google Sheets set the appropriate cell format or set it to Automatic

If I change the cell A1 to be a string, the dataframe loads, but the dtype is Object.

I would expect the headers=True flag to ignore the format of the value in the first row. Am I missing something?

Thanks!