pub unsafe extern "C" fn igPlotLines_FnFloatPtr(
    label: *const c_char,
    values_getter: Option<unsafe extern "C" fn(data: *mut c_void, idx: c_int) -> f32>,
    data: *mut c_void,
    values_count: c_int,
    values_offset: c_int,
    overlay_text: *const c_char,
    scale_min: f32,
    scale_max: f32,
    graph_size: ImVec2
)