Scenario: Alchemax, a multinational chemical corporation based in New York's Alchemax Tower, specializes in chemical, plastic, and agricultural products, serving industries like food, transportation, healthcare, medicine, and personal care. Among its many machine learning initiatives, one project focuses on predicting a person's height based on their weight (in kilograms). To align with Machine Learning Operations (MLOps) best practices, the team intends to build an automated model training pipeline that re-trains the model whenever new weight data is received. Question: What event type should be used to trigger the automated model retraining process?