There are some functions within timeseries_write_ops_utils_internal.h that get called externally (in timeseries_write_util.cpp, for example), that lead to functions other than timeseries_write_ops_utils.h needing to include the internal file. Ideally we should be able to remove this dependency, with any functions that need to be called externally being defined in the timeseries_write_ops_utils.h (non-internal) file, and any internal files belonging to a clear internal namespace.