code: def __init__(self, url, name="connection", watermark=True, **kwargs):
      if not sqlalchemy:
          raise lore.env.ModuleNotFoundError(
              "No module named sqlalchemy. Please add it to requirements.txt."
          )
  
      parsed = lore.env.parse_url(url)
      self.adapter = parsed.scheme
  
      if self.adapter == "postgres":
          require(lore.dependencies.POSTGRES)
      if self.adapter == "snowflake":
          require(lore.dependencies.SNOWFLAKE)
          if "numpy" not in parsed.query:
              logger.error(
                  "You should add `?numpy=True` query param to your snowflake connection url to ensure proper compatibility"
              )
  
      for int_value in ["pool_size", "pool_recycle", "max_overflow"]:
          if int_value in kwargs:
              kwargs[int_value] = int(kwargs[int_value])
      if "poolclass" in kwargs:
          kwargs["poolclass"] = getattr(
              sqlalchemy.pool, kwargs["poolclass"]
          )
      if "__name__" in kwargs:
          del kwargs["__name__"]
      if "echo" not in kwargs:
          kwargs["echo"] = False
      logger.info("Creating engine: %s %s" % (scrub_url(url), kwargs))
      self._engine = sqlalchemy.create_engine(
          url, **kwargs
      ).execution_options(autocommit=True)
      self._metadata = None
      self.name = name
      self.url = url
      self._transactions = []
      self.__thread_local = threading.local()
  
      @event.listens_for(
          self._engine, "before_cursor_execute", retval=True
      )
      def comment_sql_calls(
          conn, cursor, statement, parameters, context, executemany
      ):
          conn.info.setdefault("query_start_time", []).append(
              datetime.now()
          )
          if watermark:
              stack = inspect.stack()[1:-1]
              if sys.version_info.major == 3:
                  stack = [
                      (x.filename, x.lineno, x.function) for x in stack
                  ]
              else:
                  stack = [(x[1], x[2], x[3]) for x in stack]
  
              paths = [x[0] for x in stack]
              origin = next(
                  (x for x in paths if x.startswith(lore.env.ROOT)),
                  None,
              )
              if origin is None:
                  origin = next(
                      (x for x in paths if "sqlalchemy" not in x), None
                  )
              if origin is None:
                  origin = paths[0]
              caller = next(x for x in stack if x[0] == origin)
  
              statement = (
                  "/* %s | %s:%d in %s */\n"
                  % (lore.env.APP, caller[0], caller[1], caller[2])
                  + statement
              )
          return statement, parameters
  
      @event.listens_for(self._engine, "after_cursor_execute")
      def time_sql_calls(
          conn, cursor, statement, parameters, context, executemany
      ):
          total = datetime.now() - conn.info["query_start_time"].pop(-1)
  
      @event.listens_for(self._engine, "connect")
      def receive_connect(dbapi_connection, connection_record):
          if hasattr(dbapi_connection, "get_dsn_parameters"):
              logger.info(
                  "connect: %s" % dbapi_connection.get_dsn_parameters()
              )
  
imports: import csv
  import gc
  import gzip
  import hashlib
  import inspect
  import io
  import logging
  import math
  import os
  import re
  import sys
  import tempfile
  import threading
  import uuid
  from datetime import datetime
  import lore
  from lore.env import require
  from lore.util import timer, scrub_url
  from lore.stores import query_cached
  import pandas
  import sqlalchemy
  from sqlalchemy import event
  from sqlalchemy.schema import DropTable
  from sqlalchemy.ext.compiler import compiles
  import jinja2
label_desc: Use image node_id 1 to create a new Connection object from inherited base classes: object with example: obj = Connection(url, name, watermark)