document missing basedpython language features #10

Job	Run time
mkdocs	39s
Determine changes	36s
prek	36s
python package	32s
cargo fmt	33s
cargo clippy	0s
cargo build (msrv)	0s
check playground	0s
cargo test (linux)	0s
cargo fuzz build	0s
ecosystem	0s
benchmarks instrumented ty (build)	0s
ty completion evaluation	0s
test ruff-lsp	0s
cargo test (wasm)	0s
test scripts	0s
benchmarks walltime (build)	0s
cargo test (linux, release)	0s
fuzz parser	0s
benchmarks instrumented (ruff)	0s
Fuzz for new ty panics	0s
formatter instabilities and black similarity	0s
cargo shear	0s
cargo test (${{ matrix.platform }})	0s
benchmarks walltime (${{ matrix.benchmark }})	0s
benchmarks instrumented ty (${{ matrix.mode }}: ${{ matrix.benchmark }})	0s
all required checks passed	4s
	3m 0s

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