I've checked this behaviour under Python 3.7.5 and 3.8.1.

```
from __future__ import annotations
from dataclasses import dataclass, fields

@dataclass
class Foo:
    x: int

print(fields(Foo)[0].type)
```

With annotations imported, the `type` field of Field class becomes a string with a name of a type, and the program outputs 'int'.

Without annotations, the `type` field of Field class is a type, and the program outputs <class 'int'>.

I found this out when using dataclasses_serialization module. Following code works fine when we remove import of annotations:

```
from __future__ import annotations
from dataclasses import dataclass
from dataclasses_serialization.json import JSONSerializer

@dataclass
class Foo:
    x: int

JSONSerializer.deserialize(Foo, {'x': 42})
```

TypeError: issubclass() arg 1 must be a class