tramp-completion-file-name-handler-alist

tramp-completion-file-name-handler-alist is a variable defined in `tramp.el'.
Its value is

((file-name-all-completions . tramp-completion-handle-file-name-all-completions)
 (file-name-completion . tramp-completion-handle-file-name-completion))

• This variable may be risky if used as a file-local variable.

Documentation:
Alist of completion handler functions.
Used for file names matching `tramp-file-name-regexp'. Operations
not mentioned here will be handled by Tramp's file name handler
functions, or the normal Emacs functions.