Syntax Issues: Can't Perform Multiple ReplaceBlock Operations at Once

[Royal-Terrapin]

Syntax Issues: Can't Perform Multiple ReplaceBlock Operations at Once

I am having difficulty with syntax for MCA Selector's Change NBT functionality, specifically ReplaceBlocks.

Changing only one block type at a time works:

void before(ReplaceBlocks = "minecraft:dark_oak_planks='byg:aspen_planks'")

But when I enter the following in Change NBT > Script

void before(ReplaceBlocks = "minecraft:dark_oak_planks='byg:aspen_planks'", "minecraft:stripped_dark_oak_log='byg:stripped_aspen_log'")

I get the error "Method definition not expected here", with the error pointer indicating "void."

When I try using standard Java list format with square brackets

void before(ReplaceBlocks = ["minecraft:dark_oak_planks='byg:aspen_planks'", "minecraft:stripped_dark_oak_log='byg:stripped_aspen_log'"])

the program accepts it, even warning me I'm about to change blocks, but upon loading the test world, I see no blocks changed.

What is the proper syntax here?

Environment:

• OS: Ubuntu 22.02
• Java version: OpenJDK 17
• Version of MCA Selector: 2.4.1

Additional context

• Minecraft 1.19.2
• Fabric Modded: Oh the Biomes You'll Go (BYG) + more
  [will provide full list if requested]