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class compose:
    def __init__(self, *fs: Callable, from_left=False):
        self.__from_left = from_left
        self.__f_list = list(fs)

    def __call__(self, *args, **kwargs):
        fs = self.__f_list if self.__from_left else list(reversed(self.__f_list))
        return reduce(lambda result, f: f(result), tail(fs), head(fs)(*args, **kwargs))

    def __or__(self, other: Callable) -> 'compose':

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// Require kotlinx.coroutines jar as dependency, handle it yourself

import kotlinx.coroutines.experimental.async
import kotlinx.coroutines.experimental.launch
import kotlinx.coroutines.experimental.runBlocking
import java.io.FileOutputStream
import java.net.HttpURLConnection
import java.net.URL
import java.nio.channels.Channels

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from functools import partial, reduce
from itertools import chain
from typing import Callable, Any, Sequence, Optional, Mapping


class FnChain:
    """
    FnChain(obj).map(...).filter(...).reduce(...)...

    API LIST:

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minimaxWithLeastDepth :: Tree Grid -> Tree (Grid, Player, Int)
minimaxWithLeastDepth (Node g [])
    | wins O g = Node (g,O,1) []
    | wins X g = Node (g,X,1) []
    | otherwise = Node (g,B,1) []
minimaxWithLeastDepth (Node g ts)
    | turn g == O = Node (g, minimum ps, minimum cs) ts'
    | turn g == X = Node (g, maximum ps, minimum cs) ts'
        where
            ts' = map minimaxWithLeastDepth ts

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from bokeh.models import DatetimeTickFormatter
from bokeh.plotting import figure
from bokeh.io import output_file, show
from gen import onoff_to_multiline_x_ls

import datetime

ticker = DatetimeTickFormatter(
    seconds=['%c'], minutes=['%c'], hours=['%c'],
    days=['%c'], months=['%c'], years=['%c']

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btn.callback = CustomJS(args=dict(btn0=btn0, btn1=btn1, a0=graphs0[0], a1=graphs0[1], b0=graphs1[0], b1=graphs1[1]), code="""
btn0.active = cb_obj.active;
a0.visible = (cb_obj.active.includes(0)) ? true : false;
a1.visible = (cb_obj.active.includes(1)) ? true : false;
btn1.active = cb_obj.active;
b0.visible = (cb_obj.active.includes(0)) ? true : false;
b1.visible = (cb_obj.active.includes(1)) ? true : false;
""")

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//以下是SQL Builder...
type stmtOption interface{}
type stdOption struct{
  stmtOption
  params []string
}
type selectB stdOption
...
type joinB {
  stmtOption

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ln -sf /usr/share/zoneinfo/$(tzselect) /etc/localtime
hwclock --systohc

nano /etc/locale.gen && locale-gen
read -p "Default LANG is? [en_US,zh_CN...]" loc
echo "LANG=$loc.UTF-8" >> /etc/locale.conf

read -p "Hostname is?" hn
echo $hc > /etc/hostname
echo "127.0.1.1\t$hc.localdomain\t$hc" > /etc/hosts

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#!/bin/bash

#check network connection
con=$(ping -q -w 1 -c 1 `ip r | grep default | cut -d ' ' -f 3` > /dev/null && echo ok || echo error)
if [ $con == "error" ]; then
    exit -1
fi

timedatectl set-ntp true
lsblk

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fun main(args: Array<String>) {
    fib.take(10).forEach { println(it) }
}

val fib = buildSequence {
    var tmp = Pair(0, 1)
    while(true) {
        yield(tmp.first)
        tmp = Pair(tmp.second, tmp.first + tmp.second)
    }