Insert text from file into field

Hello, first I would like to thank for creating such awesome tool, been looking for something like this for very long time. Now my problem:
I'm trying to create pretty simple account creator. It should just click and type name from text file one row each loop. I have plenty of experience doing this on websites, but this is completely new for me. I have this script, but getting syntax error:7: function arguments expected near "line"



-- ========== Settings ================
Settings:setCompareDimension(true, 500)
Settings:setScriptDimension(true, 500)
-- ==========  main program ===========
theFile = file("/storage/emulated/0/scripts/usfemalenames.txt")
for line in theFile:
print line
wait(3)
click("signup.png")
wait(3)
click("first.png")
wait(3)
type(line)
print("Script ended!")
theFile.close()
So i have recreated the script, it now looks like this:

-- ========== Settings ================
Settings:setCompareDimension(true, 500)
Settings:setScriptDimension(true, 500)
-- ==========  main program ===========
click("signup.png")
wait(3)
fh,err = io.open("/sdcard/scripts/usfemalenames.txt")
if err then print("OOps"); return; end
line = fh:read()
wait(3)
click("first.png")
type (line)
print (line)
It prints the exact data I want, but for some reason it does not type them. When I use type like this
type ("example") it writes example, but when i write it like this type (line) it gives me error: Runtime error: java.ioIOException:Result 137Result 137Result 137 stack traceback: [C]: in function type