AttributeError: 'FrameFixed' object has no attribute 'format_type' on 1.0.0rc0
```python
import pandas as pd


df = pd.DataFrame({"A": [1, 2]})
df.to_hdf("foo.h5", "foo")

with pd.HDFStore("foo.h5") as hdf:
    for key in hdf.keys():
        storer = hdf.get_storer(key)
        print(type(storer), storer.format_type)
```

On 0.25.3, we have

```python
<class 'pandas.io.pytables.FrameFixed'> fixed
```

On 1.0.0rc0

```pytb
Traceback (most recent call last):
  File "bug.py", line 10, in <module>
    print(storer.format_type)
AttributeError: 'FrameFixed' object has no attribute 'format_type'
```

Didn't see anything about this in the release notes. cc @jbrockmendel (if this was part of your tables cleanup).