snap find is unclear about what it searches

$ snap help find
Usage:
  snap find [find-OPTIONS] [<query>]

The find command queries the store for available packages in the stable channel.

With the --private flag, which requires the user to be logged-in to the store
(see 'snap help login'), it instead searches for private snaps that the user
has developer access to, either directly or through the store's collaboration
feature.

A green check mark (given colour and unicode support) after a publisher name
indicates that the publisher has been verified.

[find command options]
      --private Search private snaps
      --narrow Only search for snaps in “stable”
      --section= Restrict the search to a given section
                                      (default: no-section-specified)
      --color=[auto|never|always] Use a little bit of colour to highlight
                                      some things. (default: auto)
      --unicode=[auto|never|always] Use a little bit of Unicode to improve
                                      legibility. (default: auto)

So... does snap find only search the stable channel (as the description says), and if so how do I search for snaps in the edge channel? Or does it search all channels and I can specify --narrow to only search stable, and the description is wrong?