def online_forecaster(forecaster):
from pydoc import locate
from gluonts.core.component import from_hyperparameters
forecaster_class = locate(forecaster)
return lambda request: from_hyperparameters(forecaster_class, **request[
'configuration'])
def train(path, forecaster_path) -> None:
env = SageMakerEnv(path)
# forecaster_path = env.hyperparameters.get("forecaster_class")
Forecaster = get_forecaster(forecaster_path)
if hasattr(Forecaster, "from_hyperparameters"):
forecaster = Forecaster.from_hyperparameters(**env.hyperparameters)
else:
forecaster = from_hyperparameters(Forecaster, **env.hyperparameters)
run(env, forecaster)
def from_hyperparameters(cls, **hyperparameters) -> 'GluonEstimator':
Model = getattr(cls.__init__, 'Model', None)
if not Model:
raise AttributeError(
f'Cannot find attribute Model attached to the '
f'{fqname_for(cls)}. Most probably you have forgotten to mark '
f'the class constructor as @validated().')
try:
trainer = from_hyperparameters(Trainer, **hyperparameters)
return cls(**Model(**{
**hyperparameters, 'trainer': trainer
}).__values__)
except ValidationError as e:
raise GluonTSHyperparametersError from e
def from_hyperparameters(cls, **hyperparameters) -> "GluonEstimator":
Model = getattr(cls.__init__, "Model", None)
if not Model:
raise AttributeError(
f"Cannot find attribute Model attached to the "
f"{fqname_for(cls)}. Most probably you have forgotten to mark "
f"the class constructor as @validated().")
try:
trainer = from_hyperparameters(Trainer, **hyperparameters)
return cls(**Model(**{
**hyperparameters, "trainer": trainer
}).__dict__)
except ValidationError as e:
raise GluonTSHyperparametersError from e
def from_hyperparameters(cls, **hyperparameters):
return from_hyperparameters(cls, **hyperparameters)
