Convert string returned from function as bytes

[cueckoo]

Originally opened by @uhthomas in cuelang/cue#839

Hi,

How can I make the following work?

import "encoding/yaml"

some_field: bytes

some_field: yaml.Marshal({})

Real world use-case: Kubernetes secrets.

[cueckoo]

Original reply by @myitcv in cuelang/cue#839 (comment)

The canonical way to do this is via single-quote interpolation:

import "encoding/yaml"

some_field: bytes

some_field: '\(yaml.Marshal({}))'

[cueckoo]

Original reply by @uhthomas in cuelang/cue#839 (comment)

Ah, perfect! Thank you!