Function to query value in the database and return boolean value

Question

Person, good night!

I am a beginner and I want to create a function that sees if the value exists in the database and return me true or false.

I tried to do so but when printing the result of this function, the result is "test"

async function verificarCnpjNoBanco(cnpj){
    let resultado = 'teste'
    await connection.query("SELECT cnpj FROM dados_clientes WHERE cnpj = ?", [cnpj], (err, result)=>{
        if(err) return console.log(err)
        if(result[0].cnpj){
            return resultado = true
        }else{
            return resultado = false
        }
    })
    return resultado
}

How can I make this function return me a boolean value?

I did not find any similar question, in case this is repeated, delete without problems.

Thank you for your attention!