{ "$schema": "https://json-structure.org/meta/core/v0/#", "$id": "https://raw.githubusercontent.com/api-evangelist/epa/refs/heads/main/json-structure/cip-service-start-measure-structure.json", "name": "start_measure", "description": "NHD flowline measure from which to begin the navigation.", "type": "double", "minimum": 0, "maximum": 100 }