Function internalBnodeAsSpecialIri

internalBnodeAsSpecialIri<T extends Operation>(
c: TransformationContext,
op: T,
): T
Transforms internal blank nodes to IRIs with a special prefix.

This transformation:
1. Converts <internal://blank>(...) to IRI(CONCAT(prefix, SHA1(computed-value)))
2. Rewrites ISBLANK(x) to check if the IRI starts with the special prefix
Using SHA1 keeps the IRI length manageable when blank nodes are nested.
Type Parameters
- T extends Operation
Parameters
- c: TransformationContext
  The transformation context
- op: T
  The operation to transform
Returns T
The transformed operation with blank nodes as prefixed IRIs
Example
```
// Internal blank node expression becomes:
// IRI(CONCAT("https://myInternalBnode.example.org/", SHA1(...encoded vars...)))
```
- Defined in lib/transformations/bnodeMapAsLiteral.ts:199