add ability pass any arguments to etree.tostring with transform
add ability pass any arguments to etree.tostring with transform

for example if I want set specific encoding instead default

lavr/premailer,peterbe/premailer,lavr/premailer,graingert/premailer,BlokeOne/premailer-1,peterbe/premailer,ionelmc/premailer,graingert/premailer,kengruven/premailer,peterbe/premailer,kengruven/premailer,ionelmc/premailer,industrydive/premailer,industrydive/premailer,BlokeOne/premailer-1