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# Description Following #11851, this PR adds one final conversion function for `Value`. `Value::coerce_str` takes a `&Value` and converts it to a `Cow<str>`, creating an owned `String` for types that needed converting. Otherwise, it returns a borrowed `str` for `String` and `Binary` `Value`s which avoids a clone/allocation. Where possible, `coerce_str` and `coerce_into_string` should be used instead of `coerce_string`, since `coerce_string` always allocates a new `String`.
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.