def __init__(self):
        """Initialise a FIX message."""

        self.begin_string = None
        self.message_type = None
        self.pairs = []
        self.header_index = 0
        return
def __init__ ( self ) : self . begin_string = None self . message_type = None self . pairs = [ ] self . header_index = 0 return
Initialise a FIX message.