rbwFields name [arg...]
rbw returns structured data retrieved from Bitwarden
using rbw. name is passed to rbw get --raw,
along with any extra args, the output is parsed as JSON, and the elements
of fields are returned as a dict indexed by each field's name.
The output from rbw get --raw is cached so calling rbwFields multiple times with
the same arguments will only invoke rbwFields once.
Example
{{ (rbwFields "item").name.value }}
{{ (rbwFields "item" "--folder" "my-folder").name.value }}