local cfg = {
    debug = false,                                              -- set to true to enable debug logging
    log_path = vim.fn.stdpath("cache") .. "/lsp_signature.log", -- log dir when debug is on
    -- default is  ~/.cache/nvim/lsp_signature.log
    verbose = false,                                            -- show debug line number

    bind = true,                                                -- This is mandatory, otherwise border config won't get registered.
    -- If you want to hook lspsaga or other signature handler, pls set to false
    doc_lines = 10,                                             -- will show two lines of comment/doc(if there are more than two lines in doc, will be truncated);
    -- set to 0 if you DO NOT want any API comments be shown
    -- This setting only take effect in insert mode, it does not affect signature help in normal
    -- mode, 10 by default

    max_height = 12,                       -- max height of signature floating_window
    max_width = 80,                        -- max_width of signature floating_window, line will be wrapped if exceed max_width
    -- the value need >= 40
    wrap = true,                           -- allow doc/signature text wrap inside floating_window, useful if your lsp return doc/sig is too long
    floating_window = true,                -- show hint in a floating window, set to false for virtual text only mode

    floating_window_above_cur_line = true, -- try to place the floating above the current line when possible Note:
    -- will set to true when fully tested, set to false will use whichever side has more space
    -- this setting will be helpful if you do not want the PUM and floating win overlap

    floating_window_off_x = 1, -- adjust float windows x position.
    -- can be either a number or function
    floating_window_off_y = 0, -- adjust float windows y position. e.g -2 move window up 2 lines; 2 move down 2 lines
    -- can be either number or function, see examples

    close_timeout = 4000, -- close floating window after ms when laster parameter is entered
    fix_pos = false, -- set to true, the floating window will not auto-close until finish all parameters
    hint_enable = true, -- virtual hint enable
    hint_prefix = "🐼 ", -- Panda for parameter, NOTE: for the terminal not support emoji, might crash
    hint_scheme = "String",
    hint_inline = function()
        return false
    end, -- should the hint be inline(nvim 0.10 only)?  default false
    -- return true | 'inline' to show hint inline, return 'eol' to show hint at end of line, return false to disable
    -- return 'right_align' to display hint right aligned in the current line
    hi_parameter = "LspSignatureActiveParameter", -- how your parameter will be highlight
    handler_opts = {
        border = "rounded",                       -- double, rounded, single, shadow, none, or a table of borders
    },

    always_trigger = false,                   -- sometime show signature on new line or in middle of parameter can be confusing, set it to false for #58

    auto_close_after = nil,                   -- autoclose signature float win after x sec, disabled if nil.
    extra_trigger_chars = {},                 -- Array of extra characters that will trigger signature completion, e.g., {"(", ","}
    zindex = 200,                             -- by default it will be on top of all floating windows, set to <= 50 send it to bottom

    padding = "",                             -- character to pad on left and right of signature can be ' ', or '|'  etc

    transparency = nil,                       -- disabled by default, allow floating win transparent value 1~100
    shadow_blend = 36,                        -- if you using shadow as border use this set the opacity
    shadow_guibg = "Black",                   -- if you using shadow as border use this set the color e.g. 'Green' or '#121315'
    timer_interval = 200,                     -- default timer check interval set to lower value if you want to reduce latency
    toggle_key = nil,                         -- toggle signature on and off in insert mode,  e.g. toggle_key = '<M-x>'
    toggle_key_flip_floatwin_setting = false, -- true: toggle floating_windows: true|false setting after toggle key pressed
    -- false: floating_windows setup will not change, toggle_key will pop up signature helper, but signature
    -- may not popup when typing depends on floating_window setting

    select_signature_key = nil, -- cycle to next signature, e.g. '<M-n>' function overloading
    move_cursor_key = nil,      -- imap, use nvim_set_current_win to move cursor between current win and floating
}

-- recommended:
require("lsp_signature").setup(cfg) -- no need to specify bufnr if you don't use toggle_key
