class Aws::S3::EncryptionV2::EncryptHandler

def call(context)
  envelope, cipher = context[:encryption][:cipher_provider]
   .encryption_cipher(
     kms_encryption_context: context[:encryption][:kms_encryption_context]
   )
  context[:encryption][:cipher] = cipher
  apply_encryption_envelope(context, envelope)
  apply_encryption_cipher(context, cipher)
  apply_cse_user_agent(context)
  @handler.call(context)
end