AsnSequence

    class AsnSequence(AsnComplexNode)
       This class stores the semantic content of an ASN.1 SEQUENCE.
       Members:
           _name : the name of the type
           _isOptional : if True, node is optional
           _members    : a tuple of all child elements. Each tuple contains
                         two elements: the name of the variable and the
                         type itself (as an AsnInt, AsnReal, ... or an 
                         AsnMetaMember).