Get a customer by ID

export interface Response {
  /**
   * A unique identifier for the customer
   */
  id: string;
  /**
   * The first name of the customer
   */
  firstName: string;
  /**
   * The middle name of the customer
   */
  middleName?: string;
  /**
   * The last name of the customer
   */
  lastName: string;
  /**
   * The primary email address of the customer
   */
  email: string;
  /**
   * The primary phone number of the customer in E.164 format (e.g., +1234567890)
   */
  phone: string;
  /**
   * The KYC verification status of the customer
   */
  status: "not_started" | "incomplete" | "under_review" | "approved" | "rejected";
  /**
   * The provided metadata of the customer
   */
  metadata?: {
    [k: string]: string | number | boolean;
  };
  /**
   * The creation date of the customer
   */
  createdAt: string;
  /**
   * The last update date of the customer
   */
  updatedAt: string;
}