docs: def var_set(self, session, **kwargs):
          """
          Sets the given variables or prints the current ones. "set answer=42"
          """
          if not kwargs:
              session.write_line(
                  self._utils.make_table(
                      ("Name", "Value"), session.variables.items()
                  )
              )
          else:
              for name, value in kwargs.items():
                  name = name.strip()
                  session.set(name, value)
                  session.write_line("{0}={1}", name, value)