code: def _default_max_duration(self) -> Optional[int]:
      return DEFAULT_MAX_DURATION_SECONDS
  
file_path: dstack/src/dstack/_internal/server/services/jobs/configurators/dev.py
imports: from typing import List, Optional
  from dstack._internal.core.models.configurations import ConfigurationType, PortMapping
  from dstack._internal.core.models.profiles import ProfileRetryPolicy, SpotPolicy
  from dstack._internal.core.models.runs import RetryPolicy, RunSpec
  from dstack._internal.server.services.jobs.configurators.base import JobConfigurator
  from dstack._internal.server.services.jobs.configurators.extensions.vscode import VSCodeDesktop
label_desc: Use image node_id 3 for calling the DevEnvironmentJobConfigurator obj's underlying member method code with example usage: obj._default_max_duration() and returns: DEFAULT_MAX_DURATION_SECONDS