Single values (in result.injection_parameters) stored as `numpy.ndarray`
Some derived quantities are being stored as numpy.ndarray
even though they are single values.
In: result.injection_parameters
Out: {
....
'iota': array(1.62746193),
'spin_1x': array(-0.06407305),
'spin_1y': array(-0.16103971),
'spin_1z': array(0.4935731),
'spin_2x': array(0.30814331),
'spin_2y': array(0.28333799),
'spin_2z': array(0.26240363),
'redshift': array(0.33948721),
...
}