API or Code to copy the complete Folder in to OTMM From (dev to stag)

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Dear Sir/Madam,

We need the API or Code to copy the complete Folder in to OTMM From OTMM DAL(dev to stag)
Could you please assist us or provide the code by using that we can copy the folder (if available) or approach to path forward etc.

Really appreciate the help.

Thanks
Samer