code: def compute(self) -> VastAICompute:
      return self._compute
  
file_path: dstack/src/dstack/_internal/core/backends/vastai/__init__.py
imports: from dstack._internal.core.backends.base import Backend
  from dstack._internal.core.backends.vastai.compute import VastAICompute
  from dstack._internal.core.backends.vastai.config import VastAIConfig
  from dstack._internal.core.models.backends.base import BackendType
label_desc: Use image node_id 2 for calling the VastAIBackend obj's underlying member method code with example usage: obj.compute() and returns: self