Using your code I get a list of the parameters:
print(params)
> [Parameter containing:
tensor([[ 0.0308,  0.0509,  0.0137,  ...,  0.0551,  0.0822,  0.0668],
        [-0.0764, -0.0238, -0.0644,  ...,  0.0089, -0.0293,  0.0269],
        [ 0.0975, -0.0644, -0.0705,  ..., -0.0368, -0.0390,  0.0447],
        ...,
        [ 0.0853, -0.0484,  0.0760,  ..., -0.0174,  0.0020,  0.0201],
        [-0.0089, -0.0343, -0.0659,  ...,  0.0491,  0.0273,  0.0921],
        [-0.0995,  0.0122, -0.0222,  ..., -0.0214, -0.0614,  0.0399]],
       requires_grad=True), Parameter containing:
tensor([[-0.0036, -0.0802, -0.0809,  ..., -0.0705,  0.0067,  0.0278],
        [-0.0539,  0.0010,  0.0222,  ...,
...
print(len(params))
> 12