Add US poverty target coverage contract (#53)

Author: MaxGhenis

arch/source_package.py

@@ -70,6 +70,7 @@
     "bea-nipa-personal-income-disposition": Path(
         "bea/nipa_personal_income_disposition"
     ),
+    "bea-nipa-pension-contributions": Path("bea/nipa_pension_contributions"),
     "bea-nipa-total-wages-salaries": Path("bea/nipa_total_wages_salaries"),
     "bea-regional-state-personal-income-components-2024": Path(
         "bea/regional_personal_income_state"

arch/targets/__init__.py

@@ -15,6 +15,15 @@
 )
 from db.supabase_client import insert_targets_batch, query_strata, query_targets
 from calibration.targets import TargetSpec, get_targets
+from .us_poverty import (
+    US_POVERTY_NONFILER_TARGET_COVERAGE,
+    TargetSourceCoverage,
+    coverage_entries,
+    hard_target_package_aliases,
+    source_gap_family_ids,
+    validate_us_poverty_nonfiler_source_coverage,
+    validation_only_family_ids,
+)
 
 __all__ = [
     "DEFAULT_DB_PATH",
@@ -25,12 +34,19 @@
     "StratumConstraint",
     "Target",
     "TargetSpec",
+    "TargetSourceCoverage",
     "TargetType",
+    "US_POVERTY_NONFILER_TARGET_COVERAGE",
+    "coverage_entries",
     "get_engine",
     "get_targets",
     "get_session",
+    "hard_target_package_aliases",
     "init_db",
     "insert_targets_batch",
     "query_strata",
     "query_targets",
+    "source_gap_family_ids",
+    "validate_us_poverty_nonfiler_source_coverage",
+    "validation_only_family_ids",
 ]