Uncompressed:

   Variable-length TLV      Fixed-length TLV      Boolean TLV
,-----------------------,-----------------------,-------------,
+-------+-------+-------+-------+-------+-------+------+------+
|  TYP  |  LEN  |  VAL  |  TYP  |  LEN  |  VAL  |  TYP | LEN  |
+-------+-------+-------+-------+-------+-------+------+------+

Compressed:

  +---+---+---+---+---+---+---+---+
  | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |  Bit Field
  +---+---+---+---+---+---+---+---+
    |       |                   |
 ,--'       '----,              '- Boolean Value
 |               |
+-------+-------+-------+
|  LEN  |  VAL  |  VAL  |
+-------+-------+-------+
'---------------'-------'
  Var-len Value  Fixed-len Value