@return [Array<Hash>] Returns a list of hashes. Each hash
contains information about one message that failed to change visibility. Hash keys include: * +:error_code+ * +:error_message+ * +:sender_fault+ * +:receipt_handle+
@return [Array<SentMessage>] Returns a list of {SentMessage}
objects.
# File lib/aws/sqs/errors.rb, line 81 def initialize sent, failures @sent = sent @failures = failures super("Failed to send #{failures.size} messages") end