neovim/runtime/lua/vim/_meta/base64.lua

--- @meta

--- Encode {str} using Base64.
---
--- @param str string String to encode
--- @return string Encoded string
function vim.base64.encode(str) end

--- Decode a Base64 encoded string.
---
--- @param str string Base64 encoded string
--- @return string Decoded string
function vim.base64.decode(str) end