Cargo Features

sea-streamer-types has no features set by default.

sea-streamer-types = { version = "0.5.0", features = ["json"] }
json = serde, serde_json

Affects error::JsonErr

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

serde json?
serde_json json?