Heterogeneous post author — may be a person or a company. username is non-null only for people.
| Name | Type | Description | Notes |
|---|---|---|---|
| id | String | ||
| urn | String | ||
| username | String | ||
| displayName | String | ||
| headline | String | ||
| url | String | ||
| avatarUrl | String | ||
| accountType | String | ||
| followerCount | Integer |