remove DslKey

proc/src/proc_expose.rs

@@ -87,7 +87,7 @@ impl ExposeImpl {
                 /// Generated by [tengri_proc::expose].
                 impl ::tengri::dsl::FromDsl<#state> for #t {
                     fn from_dsl (state: &#state, dsl: &impl Dsl) -> Perhaps<Self> {
-                        match dsl.key()? {
+                        match dsl.word()? {
                             Some("true")  => Ok(Some(true)),
                             Some("false") => Ok(Some(false)),
                             _ => match dsl.word()? { #(#variants)* _ => Ok(None) }