code: def read_file(self, file_path):
          
          try:
              with open(self.cont_path(file_path)) as fd:
                  return fd.read()
          except IOError as ex:
              logger.error("error while accessing file %s: %r", file_path, ex)
              raise ColinException(
                  "There was an error while accessing file %s: %r" % (file_path, ex))
docs: read file specified via 'file_path' and return its content - raises an ConuException if
          there is an issue accessing the file
          :param file_path: str, path to the file to read
          :return: str (not bytes), content of the file