public boolean isMemberShapeProperty(MemberShape memberShape) {
        return memberShapeToPropertyName.containsKey(memberShape.toShapeId());
    }
Returns true if a member shape positively maps to a property.

{@see PropertyBindingIndex#getPropertyName(ShapeId)} will return a non-empty Optional if this method
returns true.

@param memberShape the member shape to check
@return true if member shape maps to a property on the given resource
smithy-model/src/main/java/software/amazon/smithy/model/knowledge/PropertyBindingIndex.java