#import packages for data management
import pickle

#import packages for topic modeling
from bertopic import BERTopic
from bertopic.representation import KeyBERTInspired
from bertopic.vectorizers import ClassTfidfTransformer
from sentence_transformers import SentenceTransformer
from umap.umap_ import UMAP
from hdbscan import HDBSCAN
from sklearn.feature_extraction.text import CountVectorizer

#import packages for data manipulation and visualization
import pandas as pd
import matplotlib.pyplot as plt
from scipy.cluster import hierarchy as sch