def assertit(self):
if self.asserted:<EOL><INDENT>raise RuntimeError("<STR_LIT>")<EOL><DEDENT>lib.EnvAssignFactSlotDefaults(self._env, self._fact)<EOL>if lib.EnvAssert(self._env, self._fact) == ffi.NULL:<EOL><INDENT>raise CLIPSError(self._env)<EOL><DEDENT>
Assert the fact within the CLIPS environment.