Support tblproperties (weakly) in python models #1875

Job	Run time
unit test / python 3.8	53s
unit test / python 3.9	1m 6s
linter	1m 11s
unit test / python 3.10	55s
build packages	16s
unit test / python 3.11	54s
verify packages / python 3.8 / ubuntu-latest	1m 4s
verify packages / python 3.9 / ubuntu-latest	1m 10s
verify packages / python 3.10 / ubuntu-latest	1m 9s
verify packages / python 3.11 / ubuntu-latest	1m 7s
verify packages / python 3.8 / macos-latest	1m 42s
verify packages / python 3.9 / macos-latest	2m 43s
verify packages / python 3.10 / macos-latest	1m 34s
verify packages / python 3.11 / macos-latest	1m 47s
verify packages / python 3.8 / windows-latest	3m 53s
verify packages / python 3.9 / windows-latest	3m 55s
verify packages / python 3.10 / windows-latest	2m 16s
verify packages / python 3.11 / windows-latest	4m 27s
	32m 2s

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