how to override existing map?

[AlixShahid]

There is a scenario where I need to override the keymap. For example:

lsp_map = {
    { "<Leader>f", "<cmd>lua vim.lsp.buf.format({ timeout_ms = 3000 })<CR>", desc = "Format document" },
}
user_map =  {
    { "<Leader>f", "<cmd>lua require('telescope.builtin').commands() <CR>", desc = "Commands" },
}
wk = require("which-key")

No matter the order:

wk.add(lsp_map)
wk.add(user_map)

-- OR
wk.add(user_map)
wk.add(lsp_map)

which-key always maps <Leader>f to vim.lsp.buf.format.

[folke]

That's not correct. That's probably because LSP binds the keymaps in a buffer local keymaps and you don't.

[AlixShahid]

I'm sorry, but I didn't get it. The way I map is, the LSP maps get set only after the LSP is attached to the buffer, but I then call wk.add(user_map) again so that it overrides wk.add(lsp_map).

In simple terms, after the LSP mapping is done, I couldn't override the map by recalling wk.add(user_map)

[folke]

If you call add then you need to also add buffer=the_buf_id to properly override it