How to use the jsbeautifier.unpackers.packer function in jsbeautifier

final = ""
	hdr = 'Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:37.0) Gecko/20100101 Firefox/37.0'
	print('--------findurl-----',url)
	if "myvidstream" in str(url):
		#print("myvidstream="+url
		packed = ''
		content = ccurl(url,"")
		soup = BeautifulSoup(content,'lxml')
		link = soup.findAll('script',{'type':'text/javascript'})
		for i in link:
			if 'myvidstream' in i.text:
				#print(i.text)
				packed = i.text
				break
		if packed:
			val = packer.unpack(packed)
			print(val)
			soup = BeautifulSoup(val,'lxml')
			m = (re.search('file[^)]*',val)).group()
			print(m)
			if m:
				n = re.search("http[^']*",m).group()
				if n:
					print(n)
					final = n
					final = re.sub(' |"','',final)
					final = re.sub("'",'',final)
					fi = final.split('\\')
					if fi:
						final = fi[0]

found = link1['href']
			return found
	elif "videoweed" in i:
		found = ""
		return found
	elif "videowing" in i or "easyvideo" in i:
		content = ccurl(i)
		soup = BeautifulSoup(content)
		link = soup.findAll('script')
		print(link)
		print(len(link))
		if link:
			val = link[-1].text
			m = re.search('eval\([^\*]*',val)
			val1 = m.group()
			r = packer.unpack(val1)
			print(r	)
			if "videowing" in i:
				r1 = re.findall('"url":"https[^"]*',r)
				print(r1)
				if not r1:
					r1 = re.findall('"url":"http[^"]*',r)
				if r1:
					url = re.sub('"url":"','',r1[0])
					url = str(urllib.parse.unquote(url))
					url = url.replace('\\','')
					print(url)
			elif "easyvideo" in i:
				r1 = re.findall('\{url:"https[^"]*',r)
				print(r1)
				if not r1:
					r1 = re.findall('\{url:"http[^"]*',r)

found = link1['href']
			return found
	elif "videoweed" in i:
		found = ""
		return found
	elif "videowing" in i or "easyvideo" in i:
		content = ccurl(i)
		soup = BeautifulSoup(content)
		link = soup.findAll('script')
		print(link)
		print(len(link))
		if link:
			val = link[-1].text
			m = re.search('eval\([^\*]*',val)
			val1 = m.group()
			r = packer.unpack(val1)
			print(r	)
			if "videowing" in i:
				r1 = re.findall('"url":"https[^"]*',r)
				print(r1)
				if not r1:
					r1 = re.findall('"url":"http[^"]*',r)
				if r1:
					url = re.sub('"url":"','',r1[0])
					url = str(urllib.parse.unquote(url))
					url = url.replace('\\','')
					print(url)
			elif "easyvideo" in i:
				r1 = re.findall('\{url:"https[^"]*',r)
				print(r1)
				if not r1:
					r1 = re.findall('\{url:"http[^"]*',r)

if j:
						k = j['src']
					else:
						j = i.find('IFRAME')
						if j:
							k = j['SRC']
			if k:
				content = ccurl(k)
				soup = BeautifulSoup(content,'lxml')
				link = soup.findAll('script',{'type':'text/javascript'})
				for i in link:
					if 'tusfiles' in i.text:
						#print(i.text)
						packed = i.text
				if packed:
					val = packer.unpack(packed)
					print(val)
					soup = BeautifulSoup(val,'lxml')
					link = soup.find('param',{'name':'src'})['value']
					print(link)
					if link:
						found = link
					else:
						found = ''
			return found
	elif "embedupload" in i:
			content = ccurl(i)
			m = re.findall('http://www.embedupload.com/\?MF=[^"]*',content)
			if m:
				content = ccurl(m[0])
				n = re.findall('http://www.mediafire.com/\?[^<]*',content)
				if n: