def check_channel_shell_request(self, channel):
try:<EOL><INDENT>self.channels[channel].start()<EOL><DEDENT>except KeyError:<EOL><INDENT>log.error('<STR_LIT>', channel)<EOL>return False<EOL><DEDENT>else:<EOL><INDENT>return True<EOL><DEDENT>
Request to start a shell on the given channel