# Functions
Background returns a non-nil, empty Context.
TODO returns a non-nil, empty Context.
WithCancel returns a copy of parent with a new Done channel.
WithDeadline returns a copy of the parent context with the deadline adjusted to be no later than tr.
# Variables
Canceled is the error returned by Context.Err when the context is canceled.
DeadlineExceeded is the error returned by Context.Err when the context's deadline passes.
# Structs
TimeWrapper for update t.
# Type aliases
A CancelFunc tells an operation to abandon its work.