multilines strings "a la python"

hello

  Desperately,  I need multilines strings "a la python", something like :

  a_predicate(""" this is a multiline
     without any requirement of being ended by \  or anything like
     that
     just like a copy/paste would love
""")

  Putting \n\ at the end of each line is a huge nuisance in copy/paste operations
  and
     largely unnatural compared with the solution that python and many other
     languages have reached.


  greetings.
algaba