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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _accumulate_props(dest_props, src_props):
 """ helper to accumulate a dict of properties Mutates dest_props by adding the non None src_props and returns the new size """

    props_size = 0
    if src_props:
        for k, v in src_props.items():
            if v is not None:
                props_size += len(k) + _sizeof(v)
                dest_props[k] = v
    return props_size