A block that simply stores all messages it receives.
A block for sending a constant value.
A block that counts the number of messages it receives, while optionally
passing them through.
A block that decodes T messages from a byte stream.
A block that passes messages through while delaying them by a fixed or
random duration.
A block that simply discards all messages it receives.
A block that encodes T messages to a byte stream.
A block that encodes a byte stream into hexadecimal form.
Computes the cryptographic hash of a byte stream, while optionally
passing it through.
A block for generating and sending a random value.
A block that reads file names from a file system directory.
A block that reads the value of an environment variable.
A block that reads bytes from the contents of a file.
A block that reads bytes from standard input (aka stdin).
A block that writes or appends bytes to the contents of a file.
A block that writes bytes to standard error (aka stderr).
A block that writes bytes to standard output (aka stdout).