Add helper

metricflow-semantics/metricflow_semantics/specs/linkable_spec_set.py

@@ -15,6 +15,7 @@
 from metricflow_semantics.specs.entity_spec import EntitySpec
 from metricflow_semantics.specs.group_by_metric_spec import GroupByMetricSpec
 from metricflow_semantics.specs.instance_spec import InstanceSpecVisitor, LinkableInstanceSpec
+from metricflow_semantics.specs.spec_set import InstanceSpecSet
 from metricflow_semantics.specs.time_dimension_spec import TimeDimensionSpec
 
 if typing.TYPE_CHECKING:
@@ -154,6 +155,15 @@ def difference(self, other: LinkableSpecSet) -> LinkableSpecSet:  # noqa: D102
     def create_from_specs(specs: Sequence[LinkableInstanceSpec]) -> LinkableSpecSet:  # noqa: D102
         return _group_specs_by_type(specs)
 
+    @property
+    def as_instance_spec_set(self) -> InstanceSpecSet:  # noqa: D102
+        return InstanceSpecSet(
+            dimension_specs=self.dimension_specs,
+            entity_specs=self.entity_specs,
+            time_dimension_specs=self.time_dimension_specs,
+            group_by_metric_specs=self.group_by_metric_specs,
+        )
+
 
 @dataclass
 class _GroupSpecByTypeVisitor(InstanceSpecVisitor[None]):

metricflow-semantics/metricflow_semantics/specs/spec_set.py

@@ -4,20 +4,22 @@
 import itertools
 from abc import ABC, abstractmethod
 from dataclasses import dataclass
-from typing import Generic, List, Sequence, Tuple, TypeVar
+from typing import TYPE_CHECKING, Generic, List, Sequence, Tuple, TypeVar
 
 from dbt_semantic_interfaces.dataclass_serialization import SerializableDataclass
 from typing_extensions import override
 
 from metricflow_semantics.collection_helpers.merger import Mergeable
-from metricflow_semantics.specs.dimension_spec import DimensionSpec
-from metricflow_semantics.specs.entity_spec import EntitySpec
-from metricflow_semantics.specs.group_by_metric_spec import GroupByMetricSpec
 from metricflow_semantics.specs.instance_spec import InstanceSpec, InstanceSpecVisitor, LinkableInstanceSpec
-from metricflow_semantics.specs.measure_spec import MeasureSpec
-from metricflow_semantics.specs.metadata_spec import MetadataSpec
-from metricflow_semantics.specs.metric_spec import MetricSpec
-from metricflow_semantics.specs.time_dimension_spec import TimeDimensionSpec
+
+if TYPE_CHECKING:
+    from metricflow_semantics.specs.dimension_spec import DimensionSpec
+    from metricflow_semantics.specs.entity_spec import EntitySpec
+    from metricflow_semantics.specs.group_by_metric_spec import GroupByMetricSpec
+    from metricflow_semantics.specs.measure_spec import MeasureSpec
+    from metricflow_semantics.specs.metadata_spec import MetadataSpec
+    from metricflow_semantics.specs.metric_spec import MetricSpec
+    from metricflow_semantics.specs.time_dimension_spec import TimeDimensionSpec
 
 
 @dataclass(frozen=True)