Return a result or a signal on the channel.
the result that is either a signal or a value.
Return a signal on the channel.
A mysterious contravariant flatMap method
Create a new channel interface that applies a function to the value returned.
the function applied to the result passed to this channel in case of success.
A new channel interface obtained that applies
f to the result
that is passed to it in case of success.
Return a value on the channel.
the value that must be returned.