
class ParseTypes(object):
    L1_Unit = 'L1_Unit'
    L2_QuantitySimple = 'L2_QuantitySimple'
    L3_QuantityExpr = 'L3_QuantityExpr'
    L4_EqnSet = 'L4_EqnSet'
    L5_Library = 'L5_Library'
    L6_TextBlock = 'L6_TextBlock'
