diff --git a/bazel/properties.go b/bazel/properties.go
index facbedd..a438481 100644
--- a/bazel/properties.go
+++ b/bazel/properties.go
@@ -24,6 +24,23 @@
 	"github.com/google/blueprint"
 )
 
+type BazelModuleProperties struct {
+	// The label of the Bazel target replacing this Soong module. When run in conversion mode, this
+	// will import the handcrafted build target into the autogenerated file. Note: this may result in
+	// a conflict due to duplicate targets if bp2build_available is also set.
+	Label *string
+
+	// If true, bp2build will generate the converted Bazel target for this module. Note: this may
+	// cause a conflict due to the duplicate targets if label is also set.
+	//
+	// This is a bool pointer to support tristates: true, false, not set.
+	//
+	// To opt-in a module, set bazel_module: { bp2build_available: true }
+	// To opt-out a module, set bazel_module: { bp2build_available: false }
+	// To defer the default setting for the directory, do not set the value.
+	Bp2build_available *bool
+}
+
 // BazelTargetModuleProperties contain properties and metadata used for
 // Blueprint to BUILD file conversion.
 type BazelTargetModuleProperties struct {