>>> import numpy as np
>>> import pandas as pd
>>> np.repeat(da.ones((4, 4)), 0, 0)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-32-e7268ecdaf98> in <module>
----> 1 np.repeat(da.ones((4, 4)), 0, 0)

<__array_function__ internals> in repeat(*args, **kwargs)

~/sandbox/dask/dask/array/core.py in __array_function__(self, func, types, args, kwargs)
   1380         if da_func is func:
   1381             return handle_nonmatching_names(func, args, kwargs)
-> 1382         return da_func(*args, **kwargs)
   1383
   1384     @property

~/sandbox/dask/dask/array/creation.py in repeat(a, repeats, axis)
    793         out.append(result)
    794
--> 795     return concatenate(out, axis=axis)
    796
    797

~/sandbox/dask/dask/array/core.py in concatenate(seq, axis, allow_unknown_chunksizes)
   3457
   3458     if not seq:
-> 3459         raise ValueError("Need array(s) to concatenate")
   3460
   3461     meta = np.concatenate([meta_from_array(s) for s in seq], axis=axis)

ValueError: Need array(s) to concatenate