如何使用Cypress.io测试Google地图上标记的显示?

我不知道用什么方法来查找Google地图上显示的标记。

describe('Display of marker on Google map', function(){
  it.only('Check the display of marker on Google map', function(){
  cy.visit('https://www.google.co.nz/maps/@-36.9139788,174.8740846,15z?hl=en')
    cy.get('#searchboxinput').type('gold coast')
     //don't know how to select Gold Coast from the populated search items
    //How to find a marker displayed on Google Map ?
  })
})