Adding Custom Cypress command

myCustomCommand.ts

declare namespace Cypress {
  interface Chainable<Subject> {
    myCustomCommand(username: string, password: string): Cypress.Chainable<Response>
  }
}

Cypress.Commands.add('myCustomCommand', (username: string, password: string) => {

  Cypress.log({
    name: 'loginByForm',
    message: username + ' | ' + password
  })

  return cy.request({
    method: 'POST',
    url: '/login',
    form: true,
    body: {
      username,
      password
    }
  })
})

adding namespace block at top has great impact, such that the intelliSence recognizes custom commands. But when pressing ctrl+click on command in spec file, vscode navigates to the command in interface block, imagine there are many commands in same file, the programmer needs to manually navigate to actual command implementation. is there a way to let vscode navigate to actual command implementation ?