Examples:

    User = User.create( 'email' => 'john@example.com' )
    => #<User:0x98b70 @attributes={"email"=>"john@example.com", "_rev"=>"1242273425590", "_class"=>"User", "updated_at"=>"1242273425", "created_at"=>"1242273425"}, @id=1>

    user.id
    => 1

    user.email = 'jane@example.com'
    => "jane@example.com"

    user.save
    => true

    user.reload
    => true

    user.email
    => jane@example.com