class_docstr: Context for MetricFlow CLI.
docstr: Execute the DB health checks.
docstr_tok: ["Execute","the","DB","health","checks","."]
code: def run_health_checks(self) -> Dict[str, Dict[str, str]]:
      """Execute the DB health checks."""
      checks_to_run = [
          ("SELECT 1", lambda: self.sql_client.execute("SELECT 1")),
      ]
  
      results: Dict[str, Dict[str, str]] = {}
  
      for step, check in checks_to_run:
          status = "SUCCESS"
          err_string = ""
          try:
              resp = check()
              logger.info(
                  f"Health Check Item {step}: succeeded"
                  + f" with response {str(resp)}"
                  if resp
                  else None
              )
          except Exception as e:
              status = "FAIL"
              err_string = str(e)
              logger.error(
                  f"Health Check Item {step}: failed with error {err_string}"
              )
  
          results[f"{self.sql_client.sql_engine_type} - {step}"] = {
              "status": status,
              "error_message": err_string,
          }
  
      return results
  
imports: from __future__ import annotations
  import logging
  import pathlib
  from logging.handlers import TimedRotatingFileHandler
  from typing import Dict, Optional
  from dbt_semantic_interfaces.protocols.semantic_manifest import SemanticManifest
  from metricflow.cli.dbt_connectors.adapter_backed_client import AdapterBackedSqlClient
  from metricflow.cli.dbt_connectors.dbt_config_accessor import dbtArtifacts, dbtProjectMetadata
  from metricflow.engine.metricflow_engine import MetricFlowEngine
  from metricflow.model.semantic_manifest_lookup import SemanticManifestLookup
  from metricflow.protocols.sql_client import SqlClient
label_desc: Use image node_id 7 for calling the CLIContext obj's underlying member method code with example usage: obj.run_health_checks() and returns: results