from typing import TypeVar

#: T1
T1 = TypeVar("T1")

T2 = TypeVar("T2")  # A TypeVar not having doc comment

#: T3
T3 = TypeVar("T3", int, str)

#: T4
T4 = TypeVar("T4", covariant=True)

#: T5
T5 = TypeVar("T5", contravariant=True)
