Cannot use boolean in case function

[psowa001]

Hi,

I can not use True or False in case function as below

case([(table.c.item_id == None, False)], else_= True).label('saved')

it is showing me this error

File "asyncpg\protocol\protocol.pyx", line 181, in bind_execute
File "asyncpg\protocol\prepared_stmt.pyx", line 171, in asyncpg.protocol.protocol.PreparedStatementState._encode_bind_msg
asyncpg.exceptions.DataError: invalid input for query argument $3: False (expected str, got bool)

I tried to use it with sqlalchemy and it is correctly returning True/False values.

Is it some issue with postgres driver or database library?
I tried to replace True/False with 'True'/'False' and it is working.
Is there another way to return boolean values?

Kind regards