Removal of ethers.getSigners() allows the test to run, but error with it...

[harshuo2]

Why does this code give me error, but the moment I remove this statement, it works fine. Why is that so?
const accounts = await ethers.getSigners()

Can someone please tell me why is that so?

describe("withdraw", async function () {
        const accounts = await ethers.getSigners()
        beforeEach(async function () {
          // this must have some balance on this before extracting
          await fundMe.fund({ value: sendValue })
        })

        it("withdraw only with a single funder", async function () {
          // we use provider.getBalance(<kiska lena hai>) to get their balance
          // Arrange
          const accounts = await ethers.getSigners()
          const startingFundMeBalance = await fundMe.provider.getBalance(
            fundMe.address
          )
          const startingDeployerBalance = await fundMe.provider.getBalance(
            deployer
          )

This was the error I received:
"before each" hook for "withdraw only with a single funder":
TypeError: Cannot read properties of undefined (reading 'fund')
at Context.<anonymous> (test/unit/FundMe.test.js:57:24)
at processImmediate (node:internal/timers:466:21)