"""A sans-io python implementation of the Highway Addressable Remote Transducer Protocol."""

from .__version__ import *

# 延迟导入以避免循环依赖
def _get_hart_communication():
    from .HARTCommunication import HARTCommunication, BurstModeON, BurstModeOFF, PrimaryMasterMode, SecondaryMasterMode
    return HARTCommunication, BurstModeON, BurstModeOFF, PrimaryMasterMode, SecondaryMasterMode

# 导出常用模块
from . import common
from . import universal  
from . import tools
from ._unpacker import *

# 导出主要类和常量
HARTCommunication, BurstModeON, BurstModeOFF, PrimaryMasterMode, SecondaryMasterMode = _get_hart_communication()

__all__ = [
    'HARTCommunication', 
    'BurstModeON', 
    'BurstModeOFF', 
    'PrimaryMasterMode', 
    'SecondaryMasterMode',
    'common', 
    'universal', 
    'tools'
]