# Example showing the metadata field at multiple levels
urn: extension:org.example:metadata_examples
metadata:
version: 2.0
maintainer: example-team
types:
- name: point
structure:
latitude: i32
longitude: i32
metadata:
coordinate_system: "WGS84"
scalar_functions:
- name: "not_equal"
impls:
- args:
- value: any1
name: x
- value: any1
name: y
return: boolean
metadata:
performance_hint: "vectorized"
cost_estimate: 1