Attribute Macro key 

#[key]

Specify the key for a property.

Syntax

key

where

• key: A string literal with the key to use. The key doesn’t need to be a valid Rust identifier.

This macro can also be called with an explicit name identifier:

name: key

where

• key: An expression that evaluates to a string value for the key to use. The key doesn’t need to be a valid Rust identifier.

Applicable to

This attribute can be applied to properties.