types

type AccountBalanceRequest struct {
	NetworkIdentifier *NetworkIdentifier      `json:"network_identifier"`
	AccountIdentifier *AccountIdentifier      `json:"account_identifier"`
	BlockIdentifier   *PartialBlockIdentifier `json:"block_identifier,omitempty"`
	// In some cases, the caller may not want to retrieve all available balances for an
	// AccountIdentifier. If the currencies field is populated, only balances for the specified
	// currencies will be returned. If not populated, all available balances will be returned.
	Currencies []*Currency `json:"currencies,omitempty"`
}

type AccountBalanceResponse struct {
	BlockIdentifier *BlockIdentifier `json:"block_identifier"`
	// A single account may have a balance in multiple currencies.
	Balances []*Amount `json:"balances"`
	// Account-based blockchains that utilize a nonce or sequence number should include that number
	// in the metadata. This number could be unique to the identifier or global across the account
	// address.
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type AccountCoinsRequest struct {
	NetworkIdentifier *NetworkIdentifier `json:"network_identifier"`
	AccountIdentifier *AccountIdentifier `json:"account_identifier"`
	// Include state from the mempool when looking up an account's unspent coins. Note, using this
	// functionality breaks any guarantee of idempotency.
	IncludeMempool bool `json:"include_mempool"`
	// In some cases, the caller may not want to retrieve coins for all currencies for an
	// AccountIdentifier. If the currencies field is populated, only coins for the specified
	// currencies will be returned. If not populated, all unspent coins will be returned.
	Currencies []*Currency `json:"currencies,omitempty"`
}

type AccountCoinsResponse struct {
	BlockIdentifier *BlockIdentifier `json:"block_identifier"`
	// If a blockchain is UTXO-based, all unspent Coins owned by an account_identifier should be
	// returned alongside the balance. It is highly recommended to populate this field so that users
	// of the Rosetta API implementation don't need to maintain their own indexer to track their
	// UTXOs.
	Coins []*Coin `json:"coins"`
	// Account-based blockchains that utilize a nonce or sequence number should include that number
	// in the metadata. This number could be unique to the identifier or global across the account
	// address.
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type AccountCurrency struct {
	Account  *AccountIdentifier `json:"account_identifier,omitempty"`
	Currency *Currency          `json:"currency,omitempty"`
}

type AccountIdentifier struct {
	// The address may be a cryptographic public key (or some encoding of it) or a provided
	// username.
	Address    string                `json:"address"`
	SubAccount *SubAccountIdentifier `json:"sub_account,omitempty"`
	// Blockchains that utilize a username model (where the address is not a derivative of a
	// cryptographic public key) should specify the public key(s) owned by the address in metadata.
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type Allow struct {
	// All Operation.Status this implementation supports. Any status that is returned during parsing
	// that is not listed here will cause client validation to error.
	OperationStatuses []*OperationStatus `json:"operation_statuses"`
	// All Operation.Type this implementation supports. Any type that is returned during parsing
	// that is not listed here will cause client validation to error.
	OperationTypes []string `json:"operation_types"`
	// All Errors that this implementation could return. Any error that is returned during parsing
	// that is not listed here will cause client validation to error.
	Errors []*Error `json:"errors"`
	// Any Rosetta implementation that supports querying the balance of an account at any height in
	// the past should set this to true.
	HistoricalBalanceLookup bool `json:"historical_balance_lookup"`
	// If populated, `timestamp_start_index` indicates the first block index where block timestamps
	// are considered valid (i.e. all blocks less than `timestamp_start_index` could have invalid
	// timestamps). This is useful when the genesis block (or blocks) of a network have timestamp 0.
	// If not populated, block timestamps are assumed to be valid for all available blocks.
	TimestampStartIndex *int64 `json:"timestamp_start_index,omitempty"`
	// All methods that are supported by the /call endpoint. Communicating which parameters should
	// be provided to /call is the responsibility of the implementer (this is en lieu of defining an
	// entire type system and requiring the implementer to define that in Allow).
	CallMethods []string `json:"call_methods"`
	// BalanceExemptions is an array of BalanceExemption indicating which account balances could
	// change without a corresponding Operation. BalanceExemptions should be used sparingly as they
	// may introduce significant complexity for integrators that attempt to reconcile all account
	// balance changes. If your implementation relies on any BalanceExemptions, you MUST implement
	// historical balance lookup (the ability to query an account balance at any BlockIdentifier).
	BalanceExemptions []*BalanceExemption `json:"balance_exemptions"`
	// Any Rosetta implementation that can update an AccountIdentifier's unspent coins based on the
	// contents of the mempool should populate this field as true. If false, requests to
	// `/account/coins` that set `include_mempool` as true will be automatically rejected.
	MempoolCoins bool `json:"mempool_coins"`
}

type Amount struct {
	// Value of the transaction in atomic units represented as an arbitrary-sized signed integer.
	// For example, 1 BTC would be represented by a value of 100000000.
	Value    string                 `json:"value"`
	Currency *Currency              `json:"currency"`
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type BalanceExemption struct {
	// SubAccountAddress is the SubAccountIdentifier.Address that the BalanceExemption applies to
	// (regardless of the value of SubAccountIdentifier.Metadata).
	SubAccountAddress *string       `json:"sub_account_address,omitempty"`
	Currency          *Currency     `json:"currency,omitempty"`
	ExemptionType     ExemptionType `json:"exemption_type,omitempty"`
}

type Block struct {
	BlockIdentifier       *BlockIdentifier `json:"block_identifier"`
	ParentBlockIdentifier *BlockIdentifier `json:"parent_block_identifier"`
	// The timestamp of the block in milliseconds since the Unix Epoch. The timestamp is stored in
	// milliseconds because some blockchains produce blocks more often than once a second.
	Timestamp    int64                  `json:"timestamp"`
	Transactions []*Transaction         `json:"transactions"`
	Metadata     map[string]interface{} `json:"metadata,omitempty"`
}

type BlockEvent struct {
	// sequence is the unique identifier of a BlockEvent within the context of a NetworkIdentifier.
	Sequence        int64            `json:"sequence"`
	BlockIdentifier *BlockIdentifier `json:"block_identifier"`
	Type            BlockEventType   `json:"type"`
}

type BlockEventType string

type BlockIdentifier struct {
	// This is also known as the block height.
	Index int64  `json:"index"`
	Hash  string `json:"hash"`
}

type BlockRequest struct {
	NetworkIdentifier *NetworkIdentifier      `json:"network_identifier"`
	BlockIdentifier   *PartialBlockIdentifier `json:"block_identifier"`
}

type BlockResponse struct {
	Block *Block `json:"block,omitempty"`
	// Some blockchains may require additional transactions to be fetched that weren't returned in
	// the block response (ex: block only returns transaction hashes). For blockchains with a lot of
	// transactions in each block, this can be very useful as consumers can concurrently fetch all
	// transactions returned.
	OtherTransactions []*TransactionIdentifier `json:"other_transactions,omitempty"`
}

type BlockTransaction struct {
	BlockIdentifier *BlockIdentifier `json:"block_identifier"`
	Transaction     *Transaction     `json:"transaction"`
}

type BlockTransactionRequest struct {
	NetworkIdentifier     *NetworkIdentifier     `json:"network_identifier"`
	BlockIdentifier       *BlockIdentifier       `json:"block_identifier"`
	TransactionIdentifier *TransactionIdentifier `json:"transaction_identifier"`
}

type BlockTransactionResponse struct {
	Transaction *Transaction `json:"transaction"`
}

type CallRequest struct {
	NetworkIdentifier *NetworkIdentifier `json:"network_identifier"`
	// Method is some network-specific procedure call. This method could map to a network-specific
	// RPC endpoint, a method in an SDK generated from a smart contract, or some hybrid of the two.
	// The implementation must define all available methods in the Allow object. However, it is up
	// to the caller to determine which parameters to provide when invoking `/call`.
	Method string `json:"method"`
	// Parameters is some network-specific argument for a method. It is up to the caller to
	// determine which parameters to provide when invoking `/call`.
	Parameters map[string]interface{} `json:"parameters"`
}

type CallResponse struct {
	// Result contains the result of the `/call` invocation. This result will not be inspected or
	// interpreted by Rosetta tooling and is left to the caller to decode.
	Result map[string]interface{} `json:"result"`
	// Idempotent indicates that if `/call` is invoked with the same CallRequest again, at any point
	// in time, it will return the same CallResponse. Integrators may cache the CallResponse if this
	// is set to true to avoid making unnecessary calls to the Rosetta implementation. For this
	// reason, implementers should be very conservative about returning true here or they could
	// cause issues for the caller.
	Idempotent bool `json:"idempotent"`
}

type Coin struct {
	CoinIdentifier *CoinIdentifier `json:"coin_identifier"`
	Amount         *Amount         `json:"amount"`
}

type CoinAction string

type CoinChange struct {
	CoinIdentifier *CoinIdentifier `json:"coin_identifier"`
	CoinAction     CoinAction      `json:"coin_action"`
}

type CoinIdentifier struct {
	// Identifier should be populated with a globally unique identifier of a Coin. In Bitcoin, this
	// identifier would be transaction_hash:index.
	Identifier string `json:"identifier"`
}

type ConstructionCombineRequest struct {
	NetworkIdentifier   *NetworkIdentifier `json:"network_identifier"`
	UnsignedTransaction string             `json:"unsigned_transaction"`
	Signatures          []*Signature       `json:"signatures"`
}

type ConstructionCombineResponse struct {
	SignedTransaction string `json:"signed_transaction"`
}

type ConstructionDeriveRequest struct {
	NetworkIdentifier *NetworkIdentifier     `json:"network_identifier"`
	PublicKey         *PublicKey             `json:"public_key"`
	Metadata          map[string]interface{} `json:"metadata,omitempty"`
}

type ConstructionDeriveResponse struct {
	AccountIdentifier *AccountIdentifier     `json:"account_identifier,omitempty"`
	Metadata          map[string]interface{} `json:"metadata,omitempty"`
}

type ConstructionHashRequest struct {
	NetworkIdentifier *NetworkIdentifier `json:"network_identifier"`
	SignedTransaction string             `json:"signed_transaction"`
}

type ConstructionMetadataRequest struct {
	NetworkIdentifier *NetworkIdentifier `json:"network_identifier"`
	// Some blockchains require different metadata for different types of transaction construction
	// (ex: delegation versus a transfer). Instead of requiring a blockchain node to return all
	// possible types of metadata for construction (which may require multiple node fetches), the
	// client can populate an options object to limit the metadata returned to only the subset
	// required.
	Options    map[string]interface{} `json:"options,omitempty"`
	PublicKeys []*PublicKey           `json:"public_keys,omitempty"`
}

type ConstructionMetadataResponse struct {
	Metadata     map[string]interface{} `json:"metadata"`
	SuggestedFee []*Amount              `json:"suggested_fee,omitempty"`
}

type ConstructionParseRequest struct {
	NetworkIdentifier *NetworkIdentifier `json:"network_identifier"`
	// Signed is a boolean indicating whether the transaction is signed.
	Signed bool `json:"signed"`
	// This must be either the unsigned transaction blob returned by `/construction/payloads` or the
	// signed transaction blob returned by `/construction/combine`.
	Transaction string `json:"transaction"`
}

type ConstructionParseResponse struct {
	Operations               []*Operation           `json:"operations"`
	AccountIdentifierSigners []*AccountIdentifier   `json:"account_identifier_signers,omitempty"`
	Metadata                 map[string]interface{} `json:"metadata,omitempty"`
}

type ConstructionPayloadsRequest struct {
	NetworkIdentifier *NetworkIdentifier     `json:"network_identifier"`
	Operations        []*Operation           `json:"operations"`
	Metadata          map[string]interface{} `json:"metadata,omitempty"`
	PublicKeys        []*PublicKey           `json:"public_keys,omitempty"`
}

type ConstructionPayloadsResponse struct {
	UnsignedTransaction string            `json:"unsigned_transaction"`
	Payloads            []*SigningPayload `json:"payloads"`
}

type ConstructionPreprocessRequest struct {
	NetworkIdentifier      *NetworkIdentifier     `json:"network_identifier"`
	Operations             []*Operation           `json:"operations"`
	Metadata               map[string]interface{} `json:"metadata,omitempty"`
	MaxFee                 []*Amount              `json:"max_fee,omitempty"`
	SuggestedFeeMultiplier *float64               `json:"suggested_fee_multiplier,omitempty"`
}

type ConstructionPreprocessResponse struct {
	// The options that will be sent directly to `/construction/metadata` by the caller.
	Options            map[string]interface{} `json:"options,omitempty"`
	RequiredPublicKeys []*AccountIdentifier   `json:"required_public_keys,omitempty"`
}

type ConstructionSubmitRequest struct {
	NetworkIdentifier *NetworkIdentifier `json:"network_identifier"`
	SignedTransaction string             `json:"signed_transaction"`
}

type Currency struct {
	// Canonical symbol associated with a currency.
	Symbol string `json:"symbol"`
	// Number of decimal places in the standard unit representation of the amount. For example, BTC
	// has 8 decimals. Note that it is not possible to represent the value of some currency in
	// atomic units that is not base 10.
	Decimals int32 `json:"decimals"`
	// Any additional information related to the currency itself. For example, it would be useful to
	// populate this object with the contract address of an ERC-20 token.
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type CurveType string

type Error struct {
	// Code is a network-specific error code. If desired, this code can be equivalent to an HTTP
	// status code.
	Code int32 `json:"code"`
	// Message is a network-specific error message. The message MUST NOT change for a given code. In
	// particular, this means that any contextual information should be included in the details
	// field.
	Message string `json:"message"`
	// Description allows the implementer to optionally provide additional information about an
	// error. In many cases, the content of this field will be a copy-and-paste from existing
	// developer documentation. Description can ONLY be populated with generic information about a
	// particular type of error. It MUST NOT be populated with information about a particular
	// instantiation of an error (use `details` for this). Whereas the content of Error.Message
	// should stay stable across releases, the content of Error.Description will likely change
	// across releases (as implementers improve error documentation). For this reason, the content
	// in this field is not part of any type assertion (unlike Error.Message).
	Description *string `json:"description,omitempty"`
	// An error is retriable if the same request may succeed if submitted again.
	Retriable bool `json:"retriable"`
	// Often times it is useful to return context specific to the request that caused the error
	// (i.e. a sample of the stack trace or impacted account) in addition to the standard error
	// message.
	Details map[string]interface{} `json:"details,omitempty"`
}

type EventsBlocksRequest struct {
	NetworkIdentifier *NetworkIdentifier `json:"network_identifier"`
	// offset is the offset into the event stream to sync events from. If this field is not
	// populated, we return the limit events backwards from tip. If this is set to 0, we start from
	// the beginning.
	Offset *int64 `json:"offset,omitempty"`
	// limit is the maximum number of events to fetch in one call. The implementation may return <=
	// limit events.
	Limit *int64 `json:"limit,omitempty"`
}

type EventsBlocksResponse struct {
	// max_sequence is the maximum available sequence number to fetch.
	MaxSequence int64 `json:"max_sequence"`
	// events is an array of BlockEvents indicating the order to add and remove blocks to maintain a
	// canonical view of blockchain state. Lightweight clients can use this event stream to update
	// state without implementing their own block syncing logic.
	Events []*BlockEvent `json:"events"`
}

type ExemptionType string

type MempoolResponse struct {
	TransactionIdentifiers []*TransactionIdentifier `json:"transaction_identifiers"`
}

type MempoolTransactionRequest struct {
	NetworkIdentifier     *NetworkIdentifier     `json:"network_identifier"`
	TransactionIdentifier *TransactionIdentifier `json:"transaction_identifier"`
}

type MempoolTransactionResponse struct {
	Transaction *Transaction           `json:"transaction"`
	Metadata    map[string]interface{} `json:"metadata,omitempty"`
}

type MetadataRequest struct {
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type NetworkIdentifier struct {
	Blockchain string `json:"blockchain"`
	// If a blockchain has a specific chain-id or network identifier, it should go in this field. It
	// is up to the client to determine which network-specific identifier is mainnet or testnet.
	Network              string                `json:"network"`
	SubNetworkIdentifier *SubNetworkIdentifier `json:"sub_network_identifier,omitempty"`
}

type NetworkListResponse struct {
	NetworkIdentifiers []*NetworkIdentifier `json:"network_identifiers"`
}

type NetworkOptionsResponse struct {
	Version *Version `json:"version"`
	Allow   *Allow   `json:"allow"`
}

type NetworkRequest struct {
	NetworkIdentifier *NetworkIdentifier     `json:"network_identifier"`
	Metadata          map[string]interface{} `json:"metadata,omitempty"`
}

type NetworkStatusResponse struct {
	CurrentBlockIdentifier *BlockIdentifier `json:"current_block_identifier"`
	// The timestamp of the block in milliseconds since the Unix Epoch. The timestamp is stored in
	// milliseconds because some blockchains produce blocks more often than once a second.
	CurrentBlockTimestamp  int64            `json:"current_block_timestamp"`
	GenesisBlockIdentifier *BlockIdentifier `json:"genesis_block_identifier"`
	OldestBlockIdentifier  *BlockIdentifier `json:"oldest_block_identifier,omitempty"`
	SyncStatus             *SyncStatus      `json:"sync_status,omitempty"`
	Peers                  []*Peer          `json:"peers"`
}

type Operation struct {
	OperationIdentifier *OperationIdentifier `json:"operation_identifier"`
	// Restrict referenced related_operations to identifier indexes < the current
	// operation_identifier.index. This ensures there exists a clear DAG-structure of relations.
	// Since operations are one-sided, one could imagine relating operations in a single transfer or
	// linking operations in a call tree.
	RelatedOperations []*OperationIdentifier `json:"related_operations,omitempty"`
	// Type is the network-specific type of the operation. Ensure that any type that can be returned
	// here is also specified in the NetworkOptionsResponse. This can be very useful to downstream
	// consumers that parse all block data.
	Type string `json:"type"`
	// Status is the network-specific status of the operation. Status is not defined on the
	// transaction object because blockchains with smart contracts may have transactions that
	// partially apply (some operations are successful and some are not). Blockchains with atomic
	// transactions (all operations succeed or all operations fail) will have the same status for
	// each operation. On-chain operations (operations retrieved in the `/block` and
	// `/block/transaction` endpoints) MUST have a populated status field (anything on-chain must
	// have succeeded or failed). However, operations provided during transaction construction
	// (often times called \"intent\" in the documentation) MUST NOT have a populated status field
	// (operations yet to be included on-chain have not yet succeeded or failed).
	Status     *string                `json:"status,omitempty"`
	Account    *AccountIdentifier     `json:"account,omitempty"`
	Amount     *Amount                `json:"amount,omitempty"`
	CoinChange *CoinChange            `json:"coin_change,omitempty"`
	Metadata   map[string]interface{} `json:"metadata,omitempty"`
}

type OperationIdentifier struct {
	// The operation index is used to ensure each operation has a unique identifier within a
	// transaction. This index is only relative to the transaction and NOT GLOBAL. The operations in
	// each transaction should start from index 0. To clarify, there may not be any notion of an
	// operation index in the blockchain being described.
	Index int64 `json:"index"`
	// Some blockchains specify an operation index that is essential for client use. For example,
	// Bitcoin uses a network_index to identify which UTXO was used in a transaction. network_index
	// should not be populated if there is no notion of an operation index in a blockchain
	// (typically most account-based blockchains).
	NetworkIndex *int64 `json:"network_index,omitempty"`
}

type OperationStatus struct {
	// The status is the network-specific status of the operation.
	Status string `json:"status"`
	// An Operation is considered successful if the Operation.Amount should affect the
	// Operation.Account. Some blockchains (like Bitcoin) only include successful operations in
	// blocks but other blockchains (like Ethereum) include unsuccessful operations that incur a
	// fee. To reconcile the computed balance from the stream of Operations, it is critical to
	// understand which Operation.Status indicate an Operation is successful and should affect an
	// Account.
	Successful bool `json:"successful"`
}

type Operator string

type PartialBlockIdentifier struct {
	Index *int64  `json:"index,omitempty"`
	Hash  *string `json:"hash,omitempty"`
}

type Peer struct {
	PeerID   string                 `json:"peer_id"`
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type PublicKey struct {
	Bytes     []byte    `json:"hex_bytes"`
	CurveType CurveType `json:"curve_type"`
}

type SearchTransactionsRequest struct {
	NetworkIdentifier *NetworkIdentifier `json:"network_identifier"`
	Operator          *Operator          `json:"operator,omitempty"`
	// max_block is the largest block index to consider when searching for transactions. If this
	// field is not populated, the current block is considered the max_block. If you do not specify
	// a max_block, it is possible a newly synced block will interfere with paginated transaction
	// queries (as the offset could become invalid with newly added rows).
	MaxBlock *int64 `json:"max_block,omitempty"`
	// offset is the offset into the query result to start returning transactions. If any search
	// conditions are changed, the query offset will change and you must restart your search
	// iteration.
	Offset *int64 `json:"offset,omitempty"`
	// limit is the maximum number of transactions to return in one call. The implementation may
	// return <= limit transactions.
	Limit                 *int64                 `json:"limit,omitempty"`
	TransactionIdentifier *TransactionIdentifier `json:"transaction_identifier,omitempty"`
	AccountIdentifier     *AccountIdentifier     `json:"account_identifier,omitempty"`
	CoinIdentifier        *CoinIdentifier        `json:"coin_identifier,omitempty"`
	Currency              *Currency              `json:"currency,omitempty"`
	// status is the network-specific operation type.
	Status *string `json:"status,omitempty"`
	// type is the network-specific operation type.
	Type *string `json:"type,omitempty"`
	// address is AccountIdentifier.Address. This is used to get all transactions related to an
	// AccountIdentifier.Address, regardless of SubAccountIdentifier.
	Address *string `json:"address,omitempty"`
	// success is a synthetic condition populated by parsing network-specific operation statuses
	// (using the mapping provided in `/network/options`).
	Success *bool `json:"success,omitempty"`
}

type SearchTransactionsResponse struct {
	// next_offset is the next offset to use when paginating through transaction results. If this
	// field is not populated, there are no more transactions to query.
	NextOffset *int64 `json:"next_offset,omitempty"`
	// transactions is an array of BlockTransactions sorted by most recent BlockIdentifier (meaning
	// that transactions in recent blocks appear first). If there are many transactions for a
	// particular search, transactions may not contain all matching transactions. It is up to the
	// caller to paginate these transactions using the max_block field.
	Transactions []*BlockTransaction `json:"transactions"`
}

type Signature struct {
	SigningPayload *SigningPayload `json:"signing_payload"`
	PublicKey      *PublicKey      `json:"public_key"`
	SignatureType  SignatureType   `json:"signature_type"`
	Bytes          []byte          `json:"hex_bytes"`
}

type SignatureType string

type SigningPayload struct {
	AccountIdentifier *AccountIdentifier `json:"account_identifier,omitempty"`
	Bytes             []byte             `json:"hex_bytes"`
	SignatureType     SignatureType      `json:"signature_type,omitempty"`
}

type SubAccountIdentifier struct {
	// The SubAccount address may be a cryptographic value or some other identifier (ex: bonded)
	// that uniquely specifies a SubAccount.
	Address string `json:"address"`
	// If the SubAccount address is not sufficient to uniquely specify a SubAccount, any other
	// identifying information can be stored here. It is important to note that two SubAccounts with
	// identical addresses but differing metadata will not be considered equal by clients.
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type SubNetworkIdentifier struct {
	Network  string                 `json:"network"`
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type SyncStatus struct {
	// CurrentIndex is the index of the last synced block in the current stage.
	CurrentIndex int64 `json:"current_index"`
	// TargetIndex is the index of the block that the implementation is attempting to sync to in the
	// current stage.
	TargetIndex *int64 `json:"target_index,omitempty"`
	// Stage is the phase of the sync process.
	Stage *string `json:"stage,omitempty"`
}

type Transaction struct {
	TransactionIdentifier *TransactionIdentifier `json:"transaction_identifier"`
	Operations            []*Operation           `json:"operations"`
	// Transactions that are related to other transactions (like a cross-shard transaction) should
	// include the tranaction_identifier of these transactions in the metadata.
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}

type TransactionIdentifier struct {
	// Any transactions that are attributable only to a block (ex: a block event) should use the
	// hash of the block as the identifier.
	Hash string `json:"hash"`
}

type TransactionIdentifierResponse struct {
	TransactionIdentifier *TransactionIdentifier `json:"transaction_identifier"`
	Metadata              map[string]interface{} `json:"metadata,omitempty"`
}

type Version struct {
	// The rosetta_version is the version of the Rosetta interface the implementation adheres to.
	// This can be useful for clients looking to reliably parse responses.
	RosettaVersion string `json:"rosetta_version"`
	// The node_version is the canonical version of the node runtime. This can help clients manage
	// deployments.
	NodeVersion string `json:"node_version"`
	// When a middleware server is used to adhere to the Rosetta interface, it should return its
	// version here. This can help clients manage deployments.
	MiddlewareVersion *string `json:"middleware_version,omitempty"`
	// Any other information that may be useful about versioning of dependent services should be
	// returned here.
	Metadata map[string]interface{} `json:"metadata,omitempty"`
}