@metaplex-foundation/umi-serializers/src/sumSerializerSizes.ts

A comprehensive set of serializers for the Umi framework

export function sumSerializerSizes(sizes: (number | null)[]): number | null {
  return sizes.reduce(
    (all, size) => (all === null || size === null ? null : all + size),
    0 as number | null
  );
}