HowTo: Log a message without displaying it?

[T.V Raman]

The elisp docs talk about how to display a message, and how to disable
logging of that message. Is it possible to   do the converse, ie log a
message to *Messages* *without* displaying the message? I suppose I
could directly access that buffer with (messages-buffer) and write to
it -- but is there a builtin/blessed elisp call that does this?

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