syntax_data: {"ast_node_type":"other","tokens":[{"end":21,"kind":"keyword","start":0,"text":"{"}]}
source_snippet:                     {
context_before:                     for (i, arg) in args.args.iter().enumerate().take(params_in_repr.domain_size())
context_after:                         if let hir::GenericArg::Type(ty) = arg