Get it to work with mistral

[DanielAndreasen]

Thank you for this amazing plugin - unfortunately I didn't get it to work yet. Has anyone managed to create a working config for working with mistral?

So far I have:

return {
    "yetone/avante.nvim",
    event = "VeryLazy",
    version = false, -- Set this to "*" to always pull the latest release version, or set it to false to update to the latest code changes.

    provider = "mistral", -- "claude" or "openai" or "azure"
    vendors = {
        mistral = {
            api_key_name = "MISTRAL_API_KEY",
            endpoint = "https://api.mistral.ai/v1/chat/completions",
            model = "mistral-large-latest",

            parse_curl_args = function(opts, code_opts)
                local headers = {
                    ["Content-Type"] = "application/json",
                    ["Accept"] = "application/json",
                    ["Authorization"] = "Bearer " .. os.getenv(opts.api_key_name),
                }

                local Llm = require("avante.providers")

                return {
                    url = opts.endpoint,
                    -- timeout = base.timeout,
                    insecure = false,
                    headers = headers,
                    body = vim.tbl_deep_extend("force", {
                        model = opts.model,
                        temperature = 0,
                        topK = -1,
                        topP = -1,
                        maxTokensToSample = 4000,
                        stream = true,
                        messages = Llm.openai.parse_messages(code_opts)
                    }, {}),
                }
            end,

            parse_response_data = function(data_stream, event_state, opts)
                local Llm = require("avante.providers")
                Llm.openai.parse_response(data_stream, event_state, opts)
            end,
        },
    },

    -- if you want to build from source then do `make BUILD_FROM_SOURCE=true`
    build = "make",
    -- build = "powershell -ExecutionPolicy Bypass -File Build.ps1 -BuildFromSource false" -- for windows
    dependencies = {
        "nvim-treesitter/nvim-treesitter",
        "stevearc/dressing.nvim",
        "nvim-lua/plenary.nvim",
        "MunifTanjim/nui.nvim",
        --- The below dependencies are optional,
        "echasnovski/mini.pick", -- for file_selector provider mini.pick
        "nvim-telescope/telescope.nvim", -- for file_selector provider telescope
        "hrsh7th/nvim-cmp", -- autocompletion for avante commands and mentions
        "ibhagwan/fzf-lua", -- for file_selector provider fzf
        "nvim-tree/nvim-web-devicons", -- or echasnovski/mini.icons
        "zbirenbaum/copilot.lua", -- for providers='copilot'
        {
            -- support for image pasting
            "HakonHarnes/img-clip.nvim",
            event = "VeryLazy",
            opts = {
                -- recommended settings
                default = {
                    embed_image_as_base64 = false,
                    prompt_for_file_name = false,
                    drag_and_drop = {
                        insert_mode = true,
                    },
                    -- required for Windows users
                    use_absolute_path = true,
                },
            },
        },
        {
            -- Make sure to set this up properly if you have lazy=true
            'MeanderingProgrammer/render-markdown.nvim',
            opts = {
                file_types = { "markdown", "Avante" },
            },
            ft = { "markdown", "Avante" },
        },
    },

    config = function()
        require('avante').setup()
    end
}

When I ask, I get the following error:

It looks like it is using a claude model, rather than mistral. I got inspiration from #161.

Something tells me that it is the config-part near the end, but I'm unsure how to fix it.