.FastAIPropagateWrapper

			abstract type PropagateWrapper

Defines the default propagation behavior of a WrapperBlock when an encoding is applied to it.

Propagation refers to what happens when an encoding is applied to a WrapperBlock. If no encode method is defined for a wrapper block wrapper, encode is instead called on the wrapped block. Propagating the wrapper block means that the block resulting from encoding the wrapped block is rewrapped in wrapper..

			wrapper = Wrapper(block)
# propagate
encodedblock(enc, wrapper) = Wrapper(encodedblock(enc, wrapped(wrapper)))

# don't propagate
encodedblock(enc, wrapper) = encodedblock(enc, wrapped(wrapper))

The following wrapping behaviors exist:

• PropagateAlways: Always propagate. This is the default behavior.

• PropagateNever: Never propagate

• PropagateSameBlock: Only propagate if the wrapped block is unchanged by the encoding