Cargo Features

grid_search has no features set by default.

[dependencies]
grid_search = { version = "0.15.1", features = ["serialize"] }
serialize = serde

Enables serialize of best, direction ^0.17, and grid_2d ^0.12

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 serialize?