byte

boolean (0 = false, 1 = true)

integer (int16, uint16, int32, uint32, int64 and uint64)

double (IEEE 754 double)

string (UTF-8 string)

array (contains elements of the same type)

struct (contains one or more complete types)

dictionary entry (contains a key (basic type) and a value, must be part of an array)

variant (contains a type and a value)

object path (a string representation of a DBUS Object)