code: def connect(self) -> Lightdash:
      self.connection = Lightdash(self.base_url, self.api_key)
      return self.connection
  
file_path: mindsdb/mindsdb/integrations/handlers/lightdash_handler/lightdash_handler.py
imports: from collections import OrderedDict
  from mindsdb_sql import parse_sql
  from mindsdb.integrations.libs.const import HANDLER_CONNECTION_ARG_TYPE
  from mindsdb.integrations.handlers.lightdash_handler.api import Lightdash
  from mindsdb.integrations.handlers.lightdash_handler.lightdash_tables import UserTable, UserAbilityTable, OrgTable, OrgProjectsTable, OrgMembersTable, ProjectTable, WarehouseConnectionTable, DBTConnectionTable, DBTEnvironmentVarsTable, ChartsTable, SpacesTable, AccessTable, ValidationTable, DashboardsTable, QueriesTable, ChartHistoryTable, ChartConfigTable, ChartAdditionalMetricsTable, ChartTableCalculationsTable, SchedulerLogsTable, SchedulerTable, SchedulerJobsTable, SchedulerJobStatus
  from mindsdb.integrations.libs.api_handler import APIHandler
  from mindsdb.integrations.libs.response import HandlerStatusResponse
label_desc: Use image node_id 2 for calling the LightdashHandler obj's underlying member method code with example usage: obj.connect() and returns: self