csv_req_option can not filter if it's a boolean filter

[irisx0719]

Describe the bug
I tried to download the data from tableau and save it in csv format, but when I tried to filter data on a boolean filter, it doesn't work

Versions
Details of your environment, including:

• Tableau Server version (or note if using Tableau Online): 2023.1.8
• Python version: python 3.11.6
• TSC library version: 0.30

To Reproduce
csv_req_option = tsc.CSVRequestOptions(maxage=5)
csv_req_option .vf('filter1', 'abc')
csv_req_option .vf('filter2', 'True')

Results

filter1 works good, because filter1 is a normal filter with option in text format, but filter2 doesn't work, because filter2 is a boolean filter. But I don't know how to put the value in req_option if I want to filter the data with boolean filter2 with filter2 =True. and I didn't see any instruction in document saying about this one.

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[bcantoni]

@irisx0719 I was recently looking at boolean filters and I think you need to pass them in as lower-case strings, for example "true" or "false". It seems that the Tableau Server/Cloud backend treats those as case sensitive.

Let us know if that works for you and we can turn this into a documentation story to make that more clear.

[irisx0719]

@irisx0719 I was recently looking at boolean filters and I think you need to pass them in as lower-case strings, for example "true" or "false". It seems that the Tableau Server/Cloud backend treats those as case sensitive.

Let us know if that works for you and we can turn this into a documentation story to make that more clear.

thank you @bcantoni, I tried put to the lower-case string and the problem solved.

[jacalata]

Added a note here - #1471