<info descr="PY.FUNCTION_CALL">func</info>()
mod.Class.<info descr="PY.METHOD_CALL">method</info>()
<info descr="PY.FUNCTION_CALL">chained</info>().<info descr="PY.METHOD_CALL">calls</info>().<info descr="PY.METHOD_CALL">sample</info>()
(foo or bar)()
<info descr="PY.BUILTIN_NAME">len</info>(xs)