import arcgis
from arcgis.geometry import Polyline
from arcgis.geometry import lengths
simple_polyline = Polyline({
    "paths": [[[-95.5, 30.2], [-95.6, 30.3]]],
    "spatialReference": {"wkid": 4326}
})
print(type(simple_polyline))
print(simple_polyline)
usFeet_simple = lengths(
    spatial_ref={"wkid": 4326}, 
    polylines=[simple_polyline], 
    length_unit='esriUSFeet', 
    calculation_type='geodesic', 
    gis=gis
)
print("Length in US feet (simple):", usFeet_simple['lengths'][0])```
error:
```python
---------------------------------------------------------------------------
Exception                                 Traceback (most recent call last)
Cell In[2], line 10
      8 print(type(simple_polyline))
      9 print(simple_polyline)
---> 10 usFeet_simple = lengths(
     11     spatial_ref={"wkid": 4326}, 
     12     polylines=[simple_polyline], 
     13     length_unit='esriUSFeet', 
     14     calculation_type='geodesic', 
     15     gis=gis
     16 )
     17 print("Length in US feet (simple):", usFeet_simple['lengths'][0])

File /opt/conda/lib/python3.11/site-packages/arcgis/geometry/functions.py:1217, in lengths(spatial_ref, polylines, length_unit, calculation_type, gis, future)
   1215     length_unit = length_unit.value
   1216 service = gis._tools.geometry
-> 1217 return service.lengths(
   1218     spatial_ref, polylines, length_unit, calculation_type, future=future
   1219 )

File /opt/conda/lib/python3.11/site-packages/arcgis/_impl/tools.py:22655, in _GeometryService.lengths(self, sr, polylines, lengthUnit, calculationType, future)
  22653     return job
  22654 else:
> 22655     results = job.result()
  22656     for result in results:
  22657         all_results.append(result)

File /opt/conda/lib/python3.11/site-packages/arcgis/_impl/_async/jobs.py:269, in GeometryJob.result(self)
    266 from arcgis.geometry import Geometry
    268 if self._task_name == "lengths":
--> 269     res = self._future.result()
    270     return res.get("lengths", [])
    271 elif self._wkid:  # set the output sr to that wkid integer

File /opt/conda/lib/python3.11/concurrent/futures/_base.py:456, in Future.result(self, timeout)
    454     raise CancelledError()
    455 elif self._state == FINISHED:
--> 456     return self.__get_result()
    457 else:
    458     raise TimeoutError()

File /opt/conda/lib/python3.11/concurrent/futures/_base.py:401, in Future.__get_result(self)
    399 if self._exception:
    400     try:
--> 401         raise self._exception
    402     finally:
    403         # Break a reference cycle with the exception in self._exception
    404         self = None

File /opt/conda/lib/python3.11/concurrent/futures/thread.py:58, in _WorkItem.run(self)
     55     return
     57 try:
---> 58     result = self.fn(*self.args, **self.kwargs)
     59 except BaseException as exc:
     60     self.future.set_exception(exc)

File /opt/conda/lib/python3.11/site-packages/arcgis/gis/_impl/_con/_connection.py:1529, in Connection.post(self, path, params, files, **kwargs)
   1527 if return_raw_response:
   1528     return resp
-> 1529 return self._handle_response(
   1530     resp=resp,
   1531     out_path=out_path,
   1532     file_name=file_name,
   1533     try_json=try_json,
   1534     force_bytes=kwargs.pop("force_bytes", False),
   1535 )

File /opt/conda/lib/python3.11/site-packages/arcgis/gis/_impl/_con/_connection.py:1004, in Connection._handle_response(self, resp, file_name, out_path, try_json, force_bytes, ignore_error_key)
   1002             return data
   1003         errorcode = data["error"]["code"] if "code" in data["error"] else 0
-> 1004         self._handle_json_error(data["error"], errorcode)
   1005     return data
   1006 else:

File /opt/conda/lib/python3.11/site-packages/arcgis/gis/_impl/_con/_connection.py:1027, in Connection._handle_json_error(self, error, errorcode)
   1024                 # _log.error(errordetail)
   1026 errormessage = errormessage + "\n(Error Code: " + str(errorcode) + ")"
-> 1027 raise Exception(errormessage)

Exception: Unable to complete operation.
The operation was attempted on an empty geometry.
(Error Code: 400)