Placing a custom structure

I am using Minecraft Java Edition 1.19.2 - I created a custom structure in-game - I used a save structure block to save it as ui_1 - I copied that file into what I believe is the correct hierarchy in my datapack: datapacks\<datapack title>\data\ronsr\structures\ui_1.nbt - I reloaded my datapack, and saw that it loaded successfully - I tried placing my custom structure with /place structure ronsr:ui_1 but received the error: there is no structure with type "ronsr:ui_1" Where am I going wrong? I do not want this structure to generate naturally. I only want to place it with a function. I read the structure guide, but it doesn't seem to cover this. https://www.planetminecraft.com/blog/custom-structure-gen-documentation/