How to use the tink.proto.tink_pb2.TINK function in tink

AES256_GCM = create_aes_gcm_key_template(key_size=32)
AES128_CTR_HMAC_SHA256 = create_aes_ctr_hmac_aead_key_template(
    aes_key_size=16,
    iv_size=16,
    hmac_key_size=32,
    tag_size=16,
    hash_type=common_pb2.SHA256)
AES256_CTR_HMAC_SHA256 = create_aes_ctr_hmac_aead_key_template(
    aes_key_size=32,
    iv_size=16,
    hmac_key_size=32,
    tag_size=32,
    hash_type=common_pb2.SHA256)
XCHACHA20_POLY1305 = tink_pb2.KeyTemplate(
    type_url=_XCHACHA20_POLY1305_KEY_TYPE_URL,
    output_prefix_type=tink_pb2.TINK)

def create_aes_ctr_hmac_aead_key_template(
    aes_key_size: int, iv_size: int, hmac_key_size: int, tag_size: int,
    hash_type: common_pb2.HashType) -> tink_pb2.KeyTemplate:
  """Creates an AES CTR HMAC AEAD KeyTemplate, and fills in its values."""
  key_format = aes_ctr_hmac_aead_pb2.AesCtrHmacAeadKeyFormat()
  key_format.aes_ctr_key_format.params.iv_size = iv_size
  key_format.aes_ctr_key_format.key_size = aes_key_size
  key_format.hmac_key_format.params.hash = hash_type
  key_format.hmac_key_format.params.tag_size = tag_size
  key_format.hmac_key_format.key_size = hmac_key_size
  key_template = tink_pb2.KeyTemplate()
  key_template.value = key_format.SerializeToString()
  key_template.type_url = _AES_CTR_HMAC_AEAD_KEY_TYPE_URL
  key_template.output_prefix_type = tink_pb2.TINK
  return key_template

curve_type: common_pb2.EllipticCurveType,
    ec_point_format: common_pb2.EcPointFormat,
    hash_type: common_pb2.HashType,
    dem_key_template: tink_pb2.KeyTemplate) -> tink_pb2.KeyTemplate:
  """Creates a HMAC KeyTemplate, and fills in its values."""
  key_format = ecies_aead_hkdf_pb2.EciesAeadHkdfKeyFormat()
  key_format.params.kem_params.curve_type = curve_type
  key_format.params.kem_params.hkdf_hash_type = hash_type
  key_format.params.dem_params.aead_dem.CopyFrom(dem_key_template)
  key_format.params.ec_point_format = ec_point_format

  key_template = tink_pb2.KeyTemplate()
  key_template.type_url = (
      'type.googleapis.com/google.crypto.tink.EciesAeadHkdfPrivateKey')
  key_template.value = key_format.SerializeToString()
  key_template.output_prefix_type = tink_pb2.TINK
  return key_template

def create_aes_gcm_key_template(key_size: int) -> tink_pb2.KeyTemplate:
  """Creates an AES GCM KeyTemplate, and fills in its values."""
  key_format = aes_gcm_pb2.AesGcmKeyFormat()
  key_format.key_size = key_size
  key_template = tink_pb2.KeyTemplate()
  key_template.value = key_format.SerializeToString()
  key_template.type_url = _AES_GCM_KEY_TYPE_URL
  key_template.output_prefix_type = tink_pb2.TINK
  return key_template

def create_ecdsa_key_template(hash_type: common_pb2.HashType,
                              curve: common_pb2.EllipticCurveType,
                              encoding: ecdsa_pb2.EcdsaSignatureEncoding
                             ) -> tink_pb2.KeyTemplate:
  """Creates a KeyTemplate containing an EcdsaKeyFormat."""
  params = ecdsa_pb2.EcdsaParams(
      hash_type=hash_type, curve=curve, encoding=encoding)
  key_format = ecdsa_pb2.EcdsaKeyFormat(params=params)
  key_template = tink_pb2.KeyTemplate(
      value=key_format.SerializeToString(),
      type_url=_ECDSA_KEY_TYPE_URL,
      output_prefix_type=tink_pb2.TINK)

  return key_template

def create_aes_siv_key_template(key_size: int) -> tink_pb2.KeyTemplate:
  """Creates an AES EAX KeyTemplate, and fills in its values."""
  key_format = aes_siv_pb2.AesSivKeyFormat()
  key_format.key_size = key_size
  key_template = tink_pb2.KeyTemplate()
  key_template.type_url = _AES_SIV_KEY_TYPE_URL
  key_template.output_prefix_type = tink_pb2.TINK
  key_template.value = key_format.SerializeToString()
  return key_template