There is still [a minor difference](https://github.com/Technologicat/mcpyrate/issues/3) if there are at least three nested macro invocations, and a macro is scanning the tree for another macro invocation; then the tree looks different depending on whether the single-line or the multi-line format was used. The differences in that are as one would expect knowing [how `with` statements look like](https://greentreesnakes.readthedocs.io/en/latest/nodes.html#With) in the Python AST. The reason the difference manifests only for three or more macro invocations is that `mcpyrate` pops the macro that is being expanded before it hands over the tree to the macro code; hence if there are only two, the inner tree will have only one "context manager" in its `with`.