Returns a variety of information about one or more users specified by the requested usernames (handles).

public func getUsersBy(usernames: [String],
                         fields: Set<User.Field> = [],
                         expansions: [User.Expansions] = []
  )

Equivalent to GET /2/users/by.

• usernames: A list of usernames (handles) to look up. Up to 100 are allowed in a single request.
• fields: Any additional fields to include on returned objects
• expansions: Objects and their corresponding fields that should be expanded in the includes property

A Twitter API response object containing an array of User structs and any pinned tweets in the includes property