import os
import json

def check_lead_existance(filepath: str)->bool:
    if os.path.isfile(filepath) and os.path.getsize(filepath):
        with open(filepath, 'r') as f:
            data = json.load(f)["companies"]
        if len(data) > 0:
            return True
        else:
            return False
    else:
        return False