Method constructor

lib/agent.js:1019–1028

(agent)

const SYM_AGENT_CBS = Symbol('Agent Init Callbacks');
class AgentContext {
  constructor(agent) {
    if (typeof agent === 'string')
      agent = createAgent(agent);
    else if (!isAgent(agent))
      throw new Error('Invalid agent argument');
    this[SYM_AGENT] = agent;
    this[SYM_AGENT_KEYS] = null;
    this[SYM_AGENT_KEYS_IDX] = -1;
    this[SYM_AGENT_CBS] = null;
  }
  init(cb) {
    if (typeof cb !== 'function')
      cb = noop;