<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def do_clearaccess(self, line):
 """clearaccess Remove all subjects from access policy Only the submitter will have access to the object."""

        self._split_args(line, 0, 0)
        self._command_processor.get_session().get_access_control().clear()
        self._print_info_if_verbose("Removed all subjects from access policy")