can you help me draft up a brief data request email? you are writing from the perspective of a data analyst.

you are being asked to develop enhancements and KPIs for a data model that was previously developed by someone else. you are requesting that the prior developer provides documentation for the data model that explains how it was built and how its calculations satisfy the business logic that was provided by the other stakeholders. ideally, a systems diagram, ETL data pipeline, or data dictionary would be available. if not, the model could be reverse-engineered, but that would take much more time and effort than if documentation exists. Write exactly 10 paragraphs each separated with two new lines answering this question. The first paragraph must start with "identity".
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