How to use the mirakuru.base.Executor function in mirakuru

:rtype: bool
        """
        if self._endtime is not None and time.time() > self._endtime:
            return False
        return True

    def __repr__(self):
        """Readable executor representation."""
        return '<{module}.{executor}: "{command}">'.format(
            module=self.__class__.__module__,
            executor=self.__class__.__name__,
            command=self.command[:30]
        )


class StartCheckExecutor(Executor):

    """ Base class for executors with a pre- and after-start checks. """

    def pre_start_check(self):
        """
        Method fired before the start of executor.

        Should be overridden in order to return boolean value if some
        process is already started.
        :rtype: bool
        """
        raise NotImplementedError

    def start(self):
        """
        Start executor with additional checks.

# mirakuru is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public License
# along with mirakuru.  If not, see .
"""TCP executor definition."""

import socket
from typing import Union, List, Tuple, Any

from mirakuru.base import Executor


class TCPExecutor(Executor):
    """
    TCP-listening process executor.

    Used to start (and wait to actually be running) processes that can accept
    TCP connections.
    """

    def __init__(self,
                 command: Union[str, List[str], Tuple[str, ...]],
                 host: str,
                 port: int,
                 **kwargs: Any) -> None:
        """
        Initialize TCPExecutor executor.

        :param (str, list) command: command to be run by the subprocess

# mirakuru is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public License
# along with mirakuru.  If not, see .
"""Pid executor definition."""

import os.path
from typing import Union, List, Tuple, Any

from mirakuru.base import Executor


class PidExecutor(Executor):
    """
    File existence checking process executor.

    Used to start processes that create pid files (or any other for that
    matter). Starts the given process and waits for the given file to be
    created.
    """

    def __init__(self,
                 command: Union[str, List[str], Tuple[str, ...]],
                 filename: str,
                 **kwargs: Any) -> None:
        """
        Initialize the PidExecutor executor.

        If the filename is empty, a ValueError is thrown.