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Copies an existing layout mapping via its associated content-type.

post https://example.com/authoring/v1/layout-mappings/by-type//copy

Use the /layout-mappings/by-type/{type-id}/copy end-point to create a duplicate of a layout mapping. The new layout mapping will have a name in the format 'Copy [NUMBER] of [SOURCE-NAME]'
User roles: admin, manager

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