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from typing import Any, Tuple

import rclpy
from rclpy.impl.implementation_singleton import rclpy_implementation as _rclpy
from rclpy.node import Node
from rclpy.signals import SignalHandlerGuardCondition
from rclpy.utilities import timeout_sec_to_nsec


def wait_for_message(msg_type: Any, node: Node, topic: str,

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"""
Download script to download the m3u8 video stream files
"""


import multiprocessing as mp
from multiprocessing.pool import ThreadPool
import os
import subprocess
import sys

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https://github.com/scutan90/DeepLearning-500-questions/blob/master/English%20version/ch03_DeepLearningFoundation/ChapterIII_DeepLearningFoundation.md

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#include <arm_neon.h>

const double __atanf_lut[4] = {
        -0.0443265554792128,    //p7
        -0.3258083974640975,    //p3
        +0.1555786518463281,    //p5
        +0.9997878412794807     //p1
};

const double __atanf_pi_2 = M_PI_2

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"""
OpenCV Mat viewer in GDB
"""

import gdb
import cv2
import numpy as np


class PlotterCommand(gdb.Command):

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FROM ubuntu:16.04

#Inspired from https://github.com/erlerobot/gym-gazebo/blob/master/Dockerfile

RUN apt install -y -q --no-install-recommends software-properties-common
RUN add-apt-repository -y ppa:deadsnakes/ppa
RUN apt update
RUN apt install -y -q --no-install-recommends curl python3.6-dev wget
RUN curl -s https://bootstrap.pypa.io/get-pip.py | python3.6 - 

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#include "ros/ros.h"
#include <sensor_msgs/image_encodings.h>
#include <sensor_msgs/Image.h>


#include <boost/algorithm/string/predicate.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/thread/thread.hpp> 
#include <boost/thread/recursive_mutex.hpp>