Cypress doesn't see custom cy. commands

[TayoOtegbayo]

Please all,
I have a test which does not recognize my custom command:

index.js content:
import './commands.js'

Here is my command.js content:
Cypress.Commands.add('login',(usrname, password) => {
cy.clearCookies()
cy.clearLocalStorage()
cy.visit(' https://something.com/login') // Launch the URL
cy.get('#client_id').type('[email protected]') //Enter the email
cy.get('#password').type('Pkkkw0rd') //Enter the password
cy.get('form > :nth-child(3) > .styles__StyledButton-sc-1mfj3x4-0').click() //Click the login button
cy.wait(6000) //App wait for 5s

})

here is my test file.js
///

describe('The first scenario', function(){

it.only('BTC Testing', function(){
     cy.login('[email protected]','P@ssw0rd')
  })

the cy.login is not working, the error I'm getting is 'Property 'login' does not exist on type 'cy & EventEmitter'
kindly help please