class_docstr: This handler handles connection and execution of the LanceDB statements.
class_docstr_tok: ["This","handler","handles","connection","and","execution","of","the","LanceDB","statements","."]
docstr: Connect to a LanceDB database.
docstr_tok: ["Connect","to","a","LanceDB","database","."]
code: def connect(self):
      """Connect to a LanceDB database."""
      if self.is_connected is True:
          return
      try:
          self._client = self._get_client()
          self.is_connected = True
      except Exception as e:
          logger.error(f"Error connecting to LanceDB client, {e}!")
          self.is_connected = False
  
imports: from collections import OrderedDict
  from typing import List, Optional
  import lancedb
  import pandas
  import pyarrow
  from lance.vector import vec_to_table
  import duckdb
  import json
  from mindsdb.integrations.libs.const import HANDLER_CONNECTION_ARG_TYPE
  from mindsdb.integrations.libs.response import RESPONSE_TYPE
  from mindsdb.integrations.libs.response import HandlerResponse
  from mindsdb.integrations.libs.response import HandlerResponse
  from mindsdb.integrations.libs.response import HandlerStatusResponse
  from mindsdb.integrations.libs.vectordatabase_handler import FilterCondition, FilterOperator, TableField, VectorStoreHandler
  from mindsdb.utilities import log
label_desc: Use image node_id 4 for calling the LanceDBHandler obj's underlying member method code with example usage: obj.connect() without return types