mypy-play

from typing import Iterator


def fib(n: int) -> Iterator[int]:
    a, b = 0, 1
    while a < n:
        yield a
        a, b = b, a + b

mypy-play

class A:
    def __new__(cls) -> int:
        return 42
    
reveal_type(A())

mypy-play

class A: 
    def go(self) -> None:
        pass

class B0:
    X: type[A] | None = None

class B(B0):
    X = A

mypy-play

from typing import Callable, TypeVar


_K = TypeVar("_K")
_V = TypeVar("_V")

class Foo:
    pass

class Util:

mypy-play

from abc import ABC, abstractmethod

import typing as t


class nmBaseConfig:
    ...

class nmLSFConfig(nmBaseConfig):
    ...

mypy-play

from typing import Callable, TypeVar


_K = TypeVar("_K")
_V = TypeVar("_V")

class Foo:
    pass

class Util:

mypy-play

from typing import Callable, TypeVar


_K = TypeVar("_K")
_V = TypeVar("_V")

class Foo:
    pass

class Util:

mypy-play

from typing import ClassVar
from enum import IntEnum

class WithDocReference:
  _doc_reference: ClassVar[str]

class MyEnum(WithDocReference, IntEnum):
  _doc_reference = "https://www.google.com"
  A = 1
  B = 2

mypy-play

from typing import Any, Protocol, assert_type

class WithTuple[*Ts](Protocol):
    tup: tuple[*Ts]


def get_tuple[*Ts](e: WithTuple[*Ts]) -> tuple[*Ts]:
    return e.tup

mypy-play

from typing import Protocol, runtime_checkable


class P(Protocol):
    def f(self) -> None: ...
    
    
@runtime_checkable
class RCP(Protocol):
    def f(self) -> None: ...