Using python. Any hint or help would be appreciated. Thanks

1. Write a function matrix mul(ml,m2) to calcualte the matrix multiplication between two lists of matrices m1 and m2. m1 can be an arbitrary u x v matrix, ie, a list of u elements, each element is a list of v items. m2 is an arbitrary v x w matrix, i.e., a list of v elements, each element is a list of w items. The output of the function is a list of u elements, each element is a list of w items. For example, matrix mul(a,b) should return [ [9,12,15], [19,26,33], [ 29,40,51]]