text: import React from 'react';
  import { useAuth } from '../../contexts/auth';
  import { Button } from 'react-native';
  
  export default function Feed() {
    const { signOut } = useAuth();
  
    async function handleSignIn() {
      signOut();
    }
  
    return <Button title="Sair" onPress={handleSignIn} />;
  }
  