class_docstr: This handler handles connection and execution of the FaunaDB statements.
class_docstr_tok: ["This","handler","handles","connection","and","execution","of","the","FaunaDB","statements","."]
docstr: Connect to a FaunaDB database.
docstr_tok: ["Connect","to","a","FaunaDB","database","."]
code: def connect(self):
      """Connect to a FaunaDB database."""
      if self.is_connected is True:
          return self._client
  
      try:
          self._client = self._get_client()
          self.is_connected = True
          return self._client
      except Exception as e:
          logger.error(f"Error connecting to FaunaDB client, {e}!")
          self.is_connected = False
  
imports: import json
  import pandas
  from collections import OrderedDict
  from typing import List
  from faunadb import query
  from faunadb.client import FaunaClient
  from mindsdb_sql import Select, Insert, CreateTable, Delete
  from mindsdb_sql.parser.ast.select.star import Star
  from mindsdb_sql.parser.ast.base import ASTNode
  from mindsdb.integrations.libs.const import HANDLER_CONNECTION_ARG_TYPE
  from mindsdb.integrations.libs.response import RESPONSE_TYPE, HandlerResponse, HandlerStatusResponse
  from mindsdb.integrations.libs.base import DatabaseHandler
  from mindsdb.utilities import log
label_desc: Use image node_id 4 for calling the FaunaDBHandler obj's underlying member method code with example usage: obj.connect() and returns: self, self