meson/docs/markdown/snippets/vs_module_defs_customtargetindex.md

vs_module_defs keyword now supports indexes of custom_target

This means you can do something like:

defs = custom_target('generate_module_defs', ...)
shared_library('lib1', vs_module_defs : defs[0])
shared_library('lib2', vs_module_defs : defs[2])