diff --git a/kats/detectors/distribution_distance_model.py b/kats/detectors/distribution_distance_model.py
index 473be4e90..d0a1fad5d 100644
--- a/kats/detectors/distribution_distance_model.py
+++ b/kats/detectors/distribution_distance_model.py
@@ -27,6 +27,7 @@
 
 # Supported metrics for calculating distance
 # details: https://github.com/scipy/scipy/blob/v1.10.1/scipy/spatial/distance.py#L1947
+# pyre-fixme[21]: Could not find module `scipy.spatial.distance`.
 from scipy.spatial.distance import _METRICS_NAMES as SUPPORTED_DISTANCE_METRICS
 
 
diff --git a/kats/detectors/interval_detector.py b/kats/detectors/interval_detector.py
index e86a6bc40..58c2cde4b 100644
--- a/kats/detectors/interval_detector.py
+++ b/kats/detectors/interval_detector.py
@@ -53,6 +53,8 @@
 from kats.detectors.detector import DetectorModel
 from kats.detectors.detector_consts import AnomalyResponse, ConfidenceBand
 from matplotlib import pyplot as plt
+
+# pyre-fixme[21]: Could not find module `numpy.linalg`.
 from numpy.linalg import matrix_power
 from scipy.linalg import toeplitz
 from scipy.stats import beta, binom, mvn, norm
diff --git a/kats/models/bayesian_var.py b/kats/models/bayesian_var.py
index 373f95d97..f587b8ce7 100644
--- a/kats/models/bayesian_var.py
+++ b/kats/models/bayesian_var.py
@@ -26,6 +26,8 @@
 import numpy as np
 import pandas as pd
 from kats.consts import _log_error, Params, TimeSeriesData
+
+# pyre-fixme[21]: Could not find module `numpy.linalg`.
 from numpy.linalg import inv
 from scipy.linalg import block_diag
 
diff --git a/kats/models/ml_ar.py b/kats/models/ml_ar.py
index 9323f1969..5560ab0aa 100644
--- a/kats/models/ml_ar.py
+++ b/kats/models/ml_ar.py
@@ -18,6 +18,8 @@
 from kats.utils.parameter_tuning_utils import (
     get_default_lightgbm_parameter_search_space,
 )
+
+# pyre-fixme[21]: Could not find module `numpy.random`.
 from numpy.random import RandomState
 
 try:
diff --git a/kats/tests/detectors/test_bocpd.py b/kats/tests/detectors/test_bocpd.py
index ab82bc2bc..d1a94f0da 100644
--- a/kats/tests/detectors/test_bocpd.py
+++ b/kats/tests/detectors/test_bocpd.py
@@ -22,6 +22,8 @@
     TrendChangeParameters,
 )
 from kats.utils.simulator import Simulator
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/detectors/test_cusum_detection.py b/kats/tests/detectors/test_cusum_detection.py
index cf6432e7d..256ef7f4a 100644
--- a/kats/tests/detectors/test_cusum_detection.py
+++ b/kats/tests/detectors/test_cusum_detection.py
@@ -18,6 +18,8 @@
     MultiCUSUMDetector,
     VectorizedCUSUMDetector,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 from scipy.stats import chi2  # @manual
 from sklearn.datasets import make_spd_matrix
diff --git a/kats/tests/detectors/test_cusum_model.py b/kats/tests/detectors/test_cusum_model.py
index 34db2065a..7fd56e30d 100644
--- a/kats/tests/detectors/test_cusum_model.py
+++ b/kats/tests/detectors/test_cusum_model.py
@@ -23,6 +23,8 @@
     CusumScoreFunction,
     VectorizedCUSUMDetectorModel,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/detectors/test_detector_consts.py b/kats/tests/detectors/test_detector_consts.py
index c9d1ec850..b399b2403 100644
--- a/kats/tests/detectors/test_detector_consts.py
+++ b/kats/tests/detectors/test_detector_consts.py
@@ -20,6 +20,8 @@
     PercentageChange,
     SingleSpike,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/detectors/test_distribution_distance_model.py b/kats/tests/detectors/test_distribution_distance_model.py
index 0f7d95ca4..898b5db6c 100644
--- a/kats/tests/detectors/test_distribution_distance_model.py
+++ b/kats/tests/detectors/test_distribution_distance_model.py
@@ -20,6 +20,8 @@
     TimeSeriesData,
 )
 from kats.detectors.distribution_distance_model import DistributionDistanceModel
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/detectors/test_interval_detector.py b/kats/tests/detectors/test_interval_detector.py
index 4d6e86e62..828a02852 100644
--- a/kats/tests/detectors/test_interval_detector.py
+++ b/kats/tests/detectors/test_interval_detector.py
@@ -26,6 +26,8 @@
     TwoSampleRealValuedIntervalDetectorModel,
     TwoSampleSchema,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 from scipy.stats import norm
 
diff --git a/kats/tests/detectors/test_prophet_detector.py b/kats/tests/detectors/test_prophet_detector.py
index d28b8da98..4ae2ef2a6 100644
--- a/kats/tests/detectors/test_prophet_detector.py
+++ b/kats/tests/detectors/test_prophet_detector.py
@@ -23,6 +23,8 @@
     to_seasonality,
 )
 from kats.utils.simulator import Simulator
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 START_DATE_TEST_DATA = "2018-01-01"
diff --git a/kats/tests/detectors/test_robust_stat_detection.py b/kats/tests/detectors/test_robust_stat_detection.py
index 285b82c70..85c915a43 100644
--- a/kats/tests/detectors/test_robust_stat_detection.py
+++ b/kats/tests/detectors/test_robust_stat_detection.py
@@ -17,6 +17,8 @@
     RobustStatChangePoint,
     RobustStatDetector,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 from sklearn.datasets import make_spd_matrix
 
diff --git a/kats/tests/detectors/test_rolling_stats_model.py b/kats/tests/detectors/test_rolling_stats_model.py
index 1b246f29d..9e350e65c 100644
--- a/kats/tests/detectors/test_rolling_stats_model.py
+++ b/kats/tests/detectors/test_rolling_stats_model.py
@@ -19,6 +19,8 @@
     TimeSeriesData,
 )
 from kats.detectors.rolling_stats_model import RollingStatsModel
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/detectors/test_stat_sig_detector.py b/kats/tests/detectors/test_stat_sig_detector.py
index 8ff1bc617..56a785be2 100644
--- a/kats/tests/detectors/test_stat_sig_detector.py
+++ b/kats/tests/detectors/test_stat_sig_detector.py
@@ -27,6 +27,8 @@
 )
 from kats.utils.decomposition import SeasonalityHandler
 from kats.utils.simulator import Simulator
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/detectors/test_trend_mk.py b/kats/tests/detectors/test_trend_mk.py
index 65486610e..0d3f57122 100644
--- a/kats/tests/detectors/test_trend_mk.py
+++ b/kats/tests/detectors/test_trend_mk.py
@@ -11,6 +11,8 @@
 import pandas as pd
 from kats.detectors.trend_mk import MKDetector
 from kats.tests.detectors.utils import gen_no_trend_data_ndim, gen_trend_data_ndim
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/metrics/test_metadata.py b/kats/tests/metrics/test_metadata.py
index 16a1b64ac..0026f6c5f 100644
--- a/kats/tests/metrics/test_metadata.py
+++ b/kats/tests/metrics/test_metadata.py
@@ -10,6 +10,8 @@
 
 from kats.metrics import metadata
 from kats.metrics.metadata import inspect, MetricMetadata
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/metrics/test_metrics.py b/kats/tests/metrics/test_metrics.py
index 4696e0dbc..8203dda06 100644
--- a/kats/tests/metrics/test_metrics.py
+++ b/kats/tests/metrics/test_metrics.py
@@ -9,8 +9,12 @@
 from unittest import TestCase
 
 import numpy as np
+
+# pyre-fixme[21]: Could not find module `numpy.testing`.
 import numpy.testing as npt
 from kats.metrics import metrics
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/models/test_arima_model.py b/kats/tests/models/test_arima_model.py
index 03c15519d..fd6df10f4 100644
--- a/kats/tests/models/test_arima_model.py
+++ b/kats/tests/models/test_arima_model.py
@@ -26,6 +26,8 @@
     PEYTON_FCST_30_ARIMA_PARAM_2_MODEL_1,
     PEYTON_FCST_30_ARIMA_PARAM_2_MODEL_2,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 STEPS_1 = 15
diff --git a/kats/tests/models/test_ensemble.py b/kats/tests/models/test_ensemble.py
index f4c75599c..6df42d23c 100644
--- a/kats/tests/models/test_ensemble.py
+++ b/kats/tests/models/test_ensemble.py
@@ -27,6 +27,8 @@
 from kats.models.ensemble.kats_ensemble import KatsEnsemble
 from kats.models.ensemble.median_ensemble import MedianEnsembleModel
 from kats.models.ensemble.weighted_avg_ensemble import WeightedAvgEnsemble
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 np.random.seed(123321)
diff --git a/kats/tests/models/test_globalmodel.py b/kats/tests/models/test_globalmodel.py
index ff35d4903..76c40dc40 100644
--- a/kats/tests/models/test_globalmodel.py
+++ b/kats/tests/models/test_globalmodel.py
@@ -38,6 +38,8 @@
     S2Cell,
     split,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/models/test_holt_winters_model.py b/kats/tests/models/test_holt_winters_model.py
index 2c29b464d..3b30d7dab 100644
--- a/kats/tests/models/test_holt_winters_model.py
+++ b/kats/tests/models/test_holt_winters_model.py
@@ -19,6 +19,8 @@
     AIR_FCST_HW_1,  # first param combination results
     AIR_FCST_HW_2,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 pd_ver = float(re.findall("([0-9]+\\.[0-9]+)\\..*", pd.__version__)[0])
diff --git a/kats/tests/models/test_linear_model.py b/kats/tests/models/test_linear_model.py
index df86c6195..89c27f250 100644
--- a/kats/tests/models/test_linear_model.py
+++ b/kats/tests/models/test_linear_model.py
@@ -25,6 +25,8 @@
     PEYTON_FCST_LINEAR_NAN,
     PEYTON_INPUT_NAN,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 TEST_DATA: Dict[
diff --git a/kats/tests/models/test_ml_ar_model.py b/kats/tests/models/test_ml_ar_model.py
index da9e9d4e6..58709e44e 100644
--- a/kats/tests/models/test_ml_ar_model.py
+++ b/kats/tests/models/test_ml_ar_model.py
@@ -12,6 +12,8 @@
 import pandas as pd
 from kats.consts import TimeSeriesData
 from kats.models.ml_ar import MLARModel, MLARParams
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 single_univariate_ts = [
diff --git a/kats/tests/models/test_models_dummy_data.py b/kats/tests/models/test_models_dummy_data.py
index 096d13194..c31faa54d 100644
--- a/kats/tests/models/test_models_dummy_data.py
+++ b/kats/tests/models/test_models_dummy_data.py
@@ -11,6 +11,7 @@
 
 import numpy as np
 import pandas as pd
+# pyre-fixme[21]: Could not find name `Timestamp` in `pandas`.
 from pandas import Timestamp
 
 AIR_FCST_LINEAR_95 = pd.DataFrame(
diff --git a/kats/tests/models/test_neuralprophet_model.py b/kats/tests/models/test_neuralprophet_model.py
index 819e02991..920b356a0 100644
--- a/kats/tests/models/test_neuralprophet_model.py
+++ b/kats/tests/models/test_neuralprophet_model.py
@@ -22,6 +22,8 @@
     NONSEASONAL_FUTURE_DF,
     NONSEASONAL_INPUT,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/models/test_prophet_model.py b/kats/tests/models/test_prophet_model.py
index b6af2e9df..c49b23600 100644
--- a/kats/tests/models/test_prophet_model.py
+++ b/kats/tests/models/test_prophet_model.py
@@ -42,6 +42,8 @@
     PEYTON_FCST_30_PROPHET_DAILY_CAP_SM_11,
     PEYTON_FCST_30_PROPHET_DAILY_CAP_SM_12,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/models/test_sarima_model.py b/kats/tests/models/test_sarima_model.py
index 95f027c14..008542ff5 100644
--- a/kats/tests/models/test_sarima_model.py
+++ b/kats/tests/models/test_sarima_model.py
@@ -28,6 +28,8 @@
     AIR_FCST_30_SARIMA_PARAM_2_MODEL_2,
     EXOG_FCST_15_SARIMA_PARAM_EXOG_MODEL_1,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 AIR_TS: pd.DataFrame = load_air_passengers()
diff --git a/kats/tests/models/test_simple_heuristic_model.py b/kats/tests/models/test_simple_heuristic_model.py
index 899d78e79..ec8ef44c1 100644
--- a/kats/tests/models/test_simple_heuristic_model.py
+++ b/kats/tests/models/test_simple_heuristic_model.py
@@ -15,6 +15,8 @@
     SimpleHeuristicModel,
     SimpleHeuristicModelParams,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 test_univariate_df = pd.DataFrame(
diff --git a/kats/tests/models/test_stlf_model.py b/kats/tests/models/test_stlf_model.py
index 8312c45cf..192d17b8e 100644
--- a/kats/tests/models/test_stlf_model.py
+++ b/kats/tests/models/test_stlf_model.py
@@ -21,6 +21,8 @@
 )
 from kats.models.stlf import STLFModel, STLFParams
 from kats.utils.simulator import Simulator
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/models/test_theta_model.py b/kats/tests/models/test_theta_model.py
index 62c9a2a11..dd3e1d341 100644
--- a/kats/tests/models/test_theta_model.py
+++ b/kats/tests/models/test_theta_model.py
@@ -28,6 +28,8 @@
     PEYTON_FCST_30_THETA_SM_11,
     PEYTON_FCST_30_THETA_SM_12,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/models/test_var_model.py b/kats/tests/models/test_var_model.py
index 468ae58f6..8130df482 100644
--- a/kats/tests/models/test_var_model.py
+++ b/kats/tests/models/test_var_model.py
@@ -14,6 +14,8 @@
 from kats.consts import TimeSeriesData
 from kats.data.utils import load_data
 from kats.models.var import VARModel, VARParams
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/test_ensemble.py b/kats/tests/test_ensemble.py
index 7da27d53b..41c06f898 100644
--- a/kats/tests/test_ensemble.py
+++ b/kats/tests/test_ensemble.py
@@ -29,6 +29,8 @@
 from kats.models.ensemble.median_ensemble import MedianEnsembleModel
 from kats.models.ensemble.weighted_avg_ensemble import WeightedAvgEnsemble
 from kats.models.model import Model
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 np.random.seed(123321)
diff --git a/kats/tests/tsfeatures/test_tsfeatures.py b/kats/tests/tsfeatures/test_tsfeatures.py
index d75d2ebff..d92309d92 100644
--- a/kats/tests/tsfeatures/test_tsfeatures.py
+++ b/kats/tests/tsfeatures/test_tsfeatures.py
@@ -25,6 +25,8 @@
     TsFeatures,
     TsFourierFeatures,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 SAMPLE_INPUT_TS_BOCPD_SCALED = pd.DataFrame(
diff --git a/kats/tests/utils/test_datapartition.py b/kats/tests/utils/test_datapartition.py
index 7bb913620..f9baa1f73 100644
--- a/kats/tests/utils/test_datapartition.py
+++ b/kats/tests/utils/test_datapartition.py
@@ -17,6 +17,8 @@
     SimpleDataPartition,
     SimpleTimestampDataPartition,
 )
+
+# pyre-fixme[21]: Could not find module `parameterized.parameterized`.
 from parameterized.parameterized import parameterized
 
 
diff --git a/kats/tests/utils/test_decomposition.py b/kats/tests/utils/test_decomposition.py
index 4976d5d17..dbf3a3129 100644
--- a/kats/tests/utils/test_decomposition.py
+++ b/kats/tests/utils/test_decomposition.py
@@ -17,6 +17,8 @@
 from kats.utils.decomposition import SeasonalityHandler, TimeSeriesDecomposition
 from kats.utils.simulator import Simulator
 from scipy.stats import ks_2samp
+
+# pyre-fixme[21]: Could not find name `STL` in `statsmodels.tsa.seasonal`.
 from statsmodels.tsa.seasonal import seasonal_decompose, STL
 
 
diff --git a/kats/tests/utils/test_time_series_parameter_tuning.py b/kats/tests/utils/test_time_series_parameter_tuning.py
index 5b55d66b2..b6a60e38e 100644
--- a/kats/tests/utils/test_time_series_parameter_tuning.py
+++ b/kats/tests/utils/test_time_series_parameter_tuning.py
@@ -20,6 +20,7 @@
 from kats.models.prophet import ProphetModel
 from kats.utils.time_series_parameter_tuning import compute_search_cardinality
 
+# pyre-fixme[21]: Could not find module `numpy.random`.
 from numpy.random import RandomState
 
 
diff --git a/kats/tsfeatures/tsfeatures.py b/kats/tsfeatures/tsfeatures.py
index 66be0af84..acf8bad41 100644
--- a/kats/tsfeatures/tsfeatures.py
+++ b/kats/tsfeatures/tsfeatures.py
@@ -32,6 +32,8 @@
 from scipy.linalg import toeplitz
 from scipy.signal import periodogram  # @manual
 from statsmodels.stats.diagnostic import het_arch
+
+# pyre-fixme[21]: Could not find name `STL` in `statsmodels.tsa.seasonal`.
 from statsmodels.tsa.seasonal import STL
 from statsmodels.tsa.stattools import acf, kpss, pacf
 
diff --git a/kats/utils/decomposition.py b/kats/utils/decomposition.py
index 9b3dcf2d7..273e4d247 100644
--- a/kats/utils/decomposition.py
+++ b/kats/utils/decomposition.py
@@ -19,6 +19,8 @@
     ParameterError,
     TimeSeriesData,
 )
+
+# pyre-fixme[21]: Could not find name `STL` in `statsmodels.tsa.seasonal`.
 from statsmodels.tsa.seasonal import seasonal_decompose, STL
 
 # from numpy.typing import ArrayLike