code: function getRefPathValue (schema, refPath) {
    let rpath = refPath
    const hashIndex = refPath.indexOf('#')
    if (hashIndex >= 0) {
      rpath = refPath.substring(hashIndex)
      if (rpath.length > 1) {
        rpath = refPath.substring(1)
      } else {
        rpath = ''
      }
    }
  
    // Walk through each /-separated path component, and get
    // the value for that key (ignoring empty keys)
    const keys = rpath.split('/').filter(k => !!k)
    return keys.reduce(function (value, key) {
      return value[key]
    }, schema)
  }
docs: Gets the value at the ref path within schema
  @param schema the (root) json schema to search
  @param refPath string ref path to get within the schema. Ex. `#/definitions/id`
  @returns {*} Returns the value at the path location or undefined if not found within the given schema
  @private