#!/usr/bin/env python3

# -*- coding: utf-8 -*-

__author__ = "ipetrash"

from typing import Any, Self

class Foo:

def __init__(self) -> None:

self.items = []

self.key_by_value = dict()

def add_item(self, value) -> Self:

self.items.append(value)

return self

def add_items(self, values) -> Self:

self.items += values

return self

def set_value(self, key, value) -> Self:

self.key_by_value[key] = value

return self

def get_value(self, key) -> Any:

return self.key_by_value[key]

def __repr__(self) -> str:

return f"Foo<items={len(self.items)}, values={len(self.key_by_value)}>"

foo = Foo().add_item(1).add_items("abc").set_value("x", 1).set_value("x[]", [1, 2, 3])

print(foo)

print(foo.items)

print(foo.key_by_value)

print(foo.get_value("x"))

print(foo.get_value("x[]"))