Failing to call more than one rust functions in my JavaScript.

[MuhammadAlix]

Hi it might be a silly question as I am a beginner to programming.
But I am failing to call more than one rust functions in JavaScript. The second function actually runs if I remove the first one from 'main.rs' other wise it only returns the output of string of first function and returns the following error in console for the second one.

Uncaught (in promise) command n_count not found

Here is the code in my 'main.rs'

// Prevents additional console window on Windows in release, DO NOT REMOVE!!
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]

// Learn more about Tauri commands at https://tauri.app/v1/guides/features/command
#[tauri::command]
fn greet(name: &str) -> String {
    format!("Hello, {}! You've been greeted by Tauri", name)
}
#[tauri::command]
fn n_count(seq: &str) -> String {
    let count_a = seq.matches('A').count();
    let count_t = seq.matches('T').count();
    let count_g = seq.matches('G').count();
    let count_c = seq.matches('C').count();
    return format!("Count of A is {}! Count of T is {}! Count of G is {}! Count of C is {}!",count_a,count_t,count_g,count_c)
}

fn main() {
    tauri::Builder::default()
        .invoke_handler(tauri::generate_handler![greet])
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
    tauri::Builder::default()
        .invoke_handler(tauri::generate_handler![n_count])
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}

and here is the part from my 'script.js' where I am calling these functions

const invoke = window.__TAURI__.invoke;
const someString="IDK_What_I'm_Doing";
invoke('greet', {name: someString}).then((message) => console.log(message));
const sequence="ATGCGGTAGTCGATGCTA";
invoke('n_count', {seq: sequence}).then((result) => console.log(result));

Here is the full project if you want to have a look