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#!/usr/bin/env python3
# coding=utf-8
class LoadingBar:
def __init__(self, length: int = 40):
self.length = length
self.symbols = ["┈", "░", "▒", "▓"]
def __call__(self, progress: float) -> str:
p = int(progress * self.length * 4 + 0.5)
d, r = p // 4, p % 4
return "┠┈" + d * "█" + ((self.symbols[r]) + max(0, self.length - 1 - d) * "┈" if p < self.length * 4 else "") + "┈┨"
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