docs: function exactOrPrefix(query, node, info) {
    var value
  
    if (!has(node, info.property)) {
      return false
    }
  
    value = normalizeValue(node.properties[info.property], info)
  
    return Boolean(
      value === query.value ||
        (value.slice(0, query.value.length) === query.value &&
          value.charAt(query.value.length) === '-')
    )
  }