Twitter::REST::Lists#list_subscriber?

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Check if a user is a subscriber of the specified list

@see https://dev.twitter.com/rest/reference/get/lists/subscribers/show
@rate_limited Yes
@authentication Requires user context
@raise [Twitter::Error::NotFound] Error raised when supplied list is not found.
@raise [Twitter::Error::Unauthorized] Error raised when supplied user credentials are not valid.
@return [Boolean] true if user is a subscriber of the specified list, otherwise false.
@overload list_subscriber?(list, user_to_check, options = {})
  @param list [Integer, String, Twitter::List] A Twitter list ID, slug, URI, or object.
  @param user_to_check [Integer, String, Twitter::User] A Twitter user ID, screen name, URI, or object.
  @param options [Hash] A customizable set of options.
@overload list_subscriber?(user, list, user_to_check, options = {})
  @param user [Integer, String, Twitter::User] A Twitter user ID, screen name, URI, or object.
  @param list [Integer, String, Twitter::List] A Twitter list ID, slug, URI, or object.
  @param user_to_check [Integer, String, Twitter::User] A Twitter user ID, screen name, URI, or object.
  @param options [Hash] A customizable set of options.
@return [Boolean] true if user is a subscriber of the specified list, otherwise false.
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