id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,active_lock_reason,draft,pull_request,body,reactions,performed_via_github_app,state_reason,repo,type
536900797,MDU6SXNzdWU1MzY5MDA3OTc=,3614,Autocomplete in registered accessors,48983334,closed,0,,,6,2019-12-12T10:49:53Z,2019-12-16T14:53:08Z,2019-12-16T14:40:25Z,CONTRIBUTOR,,,,"At present if you use `register_dataset_accessor()` or `register_dataarray_accessor()`, ipython can not autocomplete to function within that accessor. For example:

#### MCVE Code Sample
<!-- In order for the maintainers to efficiently understand and prioritize issues, we ask you post a ""Minimal, Complete and Verifiable Example"" (MCVE): http://matthewrocklin.com/blog/work/2018/02/28/minimal-bug-reports -->

```python
import xarray as xr

@xr.register_dataset_accessor('geo')
class GeoAccessor:
    def __init__(self, xarray_obj):
        self._obj = xarray_obj

    @property
    def center(self):
        # return the geographic center point of this dataset
        lon = self._obj.latitude
        lat = self._obj.longitude
        return (float(lon.mean()), float(lat.mean()))

    def plot(self):
        # plot this array's data on a map, e.g., using Cartopy
        pass

```

#### Expected Output

It would be good if in ipython when pressing TAB `data.geo.c ` would autocomplete to `data.geo.center()`.   

#### Output of ``xr.show_versions()``
<details>
INSTALLED VERSIONS
------------------
commit: None
python: 3.7.5 (default, Oct 17 2019, 12:16:48) 
[GCC 9.2.1 20190827 (Red Hat 9.2.1-1)]
python-bits: 64
OS: Linux
OS-release: 5.3.12-300.fc31.x86_64
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: en_IE.UTF-8
LOCALE: en_IE.UTF-8
libhdf5: 1.10.4
libnetcdf: 4.6.3

xarray: 0.14.1
pandas: 0.25.3
numpy: 1.17.4
scipy: 1.2.1
netCDF4: 1.5.3
pydap: None
h5netcdf: None
h5py: 2.9.0
Nio: None
zarr: None
cftime: 1.0.4.2
nc_time_axis: None
PseudoNetCDF: None
rasterio: None
cfgrib: None
iris: None
bottleneck: None
dask: 2.9.0
distributed: None
matplotlib: 3.1.2
cartopy: None
seaborn: None
numbagg: None
setuptools: 42.0.2
pip: 19.1.1
conda: None
pytest: None
IPython: 7.10.1
sphinx: None
</details>
","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/3614/reactions"", ""total_count"": 2, ""+1"": 2, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed,13221727,issue
508371892,MDExOlB1bGxSZXF1ZXN0MzI5MTc1MzU5,3411,Revert changes made in #3358,48983334,closed,0,,,2,2019-10-17T10:07:03Z,2019-10-21T14:00:17Z,2019-10-21T00:17:48Z,CONTRIBUTOR,,0,pydata/xarray/pulls/3411,"Revert changes made in #3358 which cause errors if cloudpickle is not installed.

Closes #3401","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/3411/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull