code: function context(value) {
    var out = {}
  
    value = value || {}
  
    ;['priority', 'timeout'].forEach(function eachIntKey(key) {
      if (value.hasOwnProperty(key)) {
        out[key] = parseInt(value[key], 10)
  
        if (isNaN(out[key])) {
          throw new FieldTypeError('context.' + key, 'number')
        }
      }
    })
  
  
    if (value.hasOwnProperty('queryId')) {
      out.queryId = value.queryId + ''
    }
  
    ['bySegment', 'populateCache', 'useCache', 'finalize', 'skipEmptyBuckets'].forEach(function eachBoolKey(key) {
      if (value.hasOwnProperty(key)) {
        out[key] = !!((value[key]||false).valueOf())
      }
    })
  
    return out
  }
docs: Set mystique context field value
  
  @param {object} value
  @returns {object}