@staticmethod
def parse_transport_fields(header) ->dict:
    """
        Parse Transport request/response
        """
    res = {}
    fields_ = header.split(';')
    for field in fields_:
        if '=' in field:
            k, v = field.split('=', 1)
        else:
            k, v = field, None
        res[k.strip()] = v.strip() if v is not None else None
    return res
