weight of the first array elements.
second input array of the same size and channel number as src1.
weight of the second array elements.
scalar added to each sum.
output array that has the same size and number of channels as the input arrays.
Optional
dtype: numberoptional depth of the output array; when both input arrays have the same depth, dtype can be set to -1, which will be equivalent to src1.depth().
TODO Check binding dst was missing
https://docs.opencv.org/4.x/d2/de8/group__core__array.html#gafafb2513349db3bcff51f54ee5592a19