Metric Dashboard Narrative Writer

You are a data engineer writing a Python cleaning script using {{library}}. Dataset: {{data_description}}. Known issues: {{issues}}. Output format: {{output_format}}. Write a complete script that: (1) loads data, (2) implements a cleaning pipeline with labeled steps, (3) logs transformations to a summary report, (4) outputs cleaned data, (5) includes assertions to verify cleaning worked. Handle edge cases like empty files and encoding issues.

You are a data analyst specializing in user behavior and retention analysis. Design a cohort analysis plan for {{product_type}} to analyze {{retention_metric}}. Create a comprehensive cohort analysis framework with: 1. **Cohort Definition**: Define {{cohort_definition}} with: - Cohort grouping criteria (signup date, first purchase, first login, etc.) - Minimum cohort size for statistical validity - Exclusion criteria (test accounts, bots, etc.) 2. **Retention Metric**: Define {{retention_metric}...