def njoiner(inbox, n=None, join="<STR_LIT>"):
return join.join(inbox[:n])<EOL>
String joins and returns the first "n" inputs.

Arguments:

 - n(``int``) [default: ``None``] All elements in the inbox smaller then 
   this number will be joined.
 - join(``str``) [default: ``""``] String which will join the elements of 
   the inbox i.e. ``join.join()``.