Cargo Features

whatsapp-export-parser has no features set by default.

[dependencies]
whatsapp-export-parser = { version = "0.1.0", features = ["serde-1"] }
serde-1 = serde

Enables serde of chrono

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features.

serde serde-1?

With derive and default (std)