Cargo Features

[dependencies]
karyon_jsonrpc_macro = { version = "0.2.1", default-features = false, features = ["smol", "tokio"] }
default = smol

The smol feature is set by default whenever karyon_jsonrpc_macro is added without default-features = false somewhere in the dependency tree.

smol default
tokio

karyon_jsonrpc_macro has 3 features without comments.