- capacity
size_t capacity [@property getter]
- free
size_t free [@property getter]
- length
size_t length [@property getter]
- opDollar
size_t opDollar [@property getter]
- opIndex
ubyte[] opIndex [@property getter]
- opSlice
ubyte[] opSlice(size_t start, size_t end)
Interface for implemeting input/output buffers.