numpy.array() not handling an array type

[zplizzi]

I'm trying to make a jitclass that can take either a list or an array as an argument, to then convert to an array with numpy.array(). However, it seems like the numpy.array() method doesn't handle array types properly. Here's a minimal (failing) example of this problem.

@numba.jit((numba.float64[:],), nopython = True)
def test(v):
    a = np.array(v)
    return a 

Here's what seems to be the relevant parts of the error message (I can post more if helpful), which occurs on simply defining the function above:

TypingError: Invalid usage of Function(<built-in function array>) with parameters (array(float64, 1d, A))
 * parameterized
In definition 0:
    TypingError: array(float64, 1d, A) not allowed in a homogenous sequence
[1] During: resolving callee type: Function(<built-in function array>)
[2] During: typing of call at <ipython-input-163-4b2e73a0638f> (3)

Failed at nopython (nopython frontend)
Invalid usage of Function(<built-in function array>) with parameters (array(float64, 1d, A))
 * parameterized
In definition 0:
    TypingError: array(float64, 1d, A) not allowed in a homogenous sequence
[1] During: resolving callee type: Function(<built-in function array>)
[2] During: typing of call at <ipython-input-163-4b2e73a0638f> (3)