Create MF4 with channel array

[enzoli977]

Currently I am using
mdf.append(
Signal(
l1_arr,
time_stamps,
name='Nested_structures',
)
)
to append signals to mdf, however, it can only append a single value to a timestamp for each signal. I am wondering if asammdf can append a list or array to the signal for every time stamps, like this
<Signal Sample_signal:
samples=[[ 10 18 9 ... 56 180 63]
[ 10 18 9 ... 152 162 63]
[ 10 18 9 ... 101 162 63]
...
[ 10 18 9 ... 27 180 63]
[ 10 18 9 ... 27 180 63]
[ 10 18 9 ... 27 180 63]]
timestamps=[1.69761808e+09 1.69761808e+09 1.69761808e+09 1.69761808e+09
1.69761808e+09 1.69761808e+09 1.69761808e+09 1.69761808e+09
1.69761808e+09 1.69761808e+09 1.69761808e+09 1.69761808e+09
1.69761808e+09 1.69761808e+09]
invalidation_bits=None
unit="m"
conversion=None
source=None
comment="