JSDoc: Class: TX

Constructor

new TX(optionsnullable)

Create a transaction.

Parameters:

Name	Type	Attributes	Description
`options`	Object	<nullable>

Properties:

Name	Type	Description
`version`	Number
`inputs`	Array.<Input>
`outputs`	Array.<Output>
`locktime`	Number

Source:

primitives/tx.js, line 47

Methods

(static) fromJSON(json) → {TX}

Instantiate a transaction from a jsonified transaction object.

Parameters:

Name	Type	Description
`json`	Object	The jsonified transaction object.

Source:

primitives/tx.js, line 2234

Returns:

Type: TX

(static) fromOptions(options) → {TX}

Instantiate TX from options object.

Parameters:

Name	Type	Description
`options`	Object

Source:

primitives/tx.js, line 116

Returns:

Type: TX

(static) fromRaw(data, encnullable) → {TX}

Instantiate a transaction from a serialized Buffer.

Parameters:

Name	Type	Attributes	Description
`data`	Buffer
`enc`	String	<nullable>	Encoding, can be `'hex'` or null.

Source:

primitives/tx.js, line 2245

Returns:

Type: TX

(static) fromReader(br, block) → {TX}

Instantiate a transaction from a buffer reader.

Parameters:

Name	Type	Description
`br`	BufferReader
`block`	Boolean

Source:

primitives/tx.js, line 2258

Returns:

Type: TX

(static) isTX(obj) → {Boolean}

Test whether an object is a TX.

Parameters:

Name	Type	Description
`obj`	Object

Source:

primitives/tx.js, line 2548

Returns:

Type: Boolean

(private) _getAddresses(view) → {Array}

Get all addresses.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 1093

Returns:

[addrs, table]

Type: Array

(private) _getInputAddresses(view) → {Array}

Get all input addresses.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 1034

Returns:

[addrs, table]

Type: Array

(private) _getOutputAddresses() → {Array}

Get all output addresses.

Source:

primitives/tx.js, line 1065

Returns:

[addrs, table]

Type: Array

check(view, flagsopt, nullable)

Verify all transaction inputs.

Parameters:

Name	Type	Attributes	Default	Description
`view`	CoinView
`flags`	VerifyFlags	<optional> <nullable>	STANDARD_VERIFY_FLAGS

Source:

primitives/tx.js, line 780

Throws:

on invalid inputs
Type ScriptError

(async) checkAsync(view, flagsopt, nullable, poolnullable) → {Promise}

Verify the transaction inputs on the worker pool (if workers are enabled).

Parameters:

Name	Type	Attributes	Default
`view`	CoinView
`flags`	VerifyFlags	<optional> <nullable>	STANDARD_VERIFY_FLAGS
`pool`	WorkerPool	<nullable>

Source:

primitives/tx.js, line 833

Returns:

Type: Promise

checkInput(index, coin, flagsopt)

Verify a transaction input.

Parameters:

Name	Type	Attributes	Default	Description
`index`	Number			Index of output being verified.
`coin`	Coin \| Output			Previous output.
`flags`	VerifyFlags	<optional>	STANDARD_VERIFY_FLAGS

Source:

primitives/tx.js, line 807

Throws:

on invalid input
Type ScriptError

(async) checkInputAsync(index, coin, flagsopt, poolnullable) → {Promise}

Verify a transaction input asynchronously.

Parameters:

Name	Type	Attributes	Default	Description
`index`	Number			Index of output being verified.
`coin`	Coin \| Output			Previous output.
`flags`	VerifyFlags	<optional>	STANDARD_VERIFY_FLAGS
`pool`	WorkerPool	<nullable>

Source:

primitives/tx.js, line 858

Returns:

Type: Promise

checkInputs(view, height) → {Array}

Perform contextual checks to verify input, output, and fee values, as well as coinbase spend maturity (coinbases can only be spent 100 blocks or more after they're created). Note that this function is consensus critical.

Parameters:

Name	Type	Description
`view`	CoinView
`height`	Number	Height at which the transaction is being spent. In the mempool this is the chain height plus one at the time it entered the pool.

Source:

primitives/tx.js, line 1737

Returns:

[fee, reason, score]

Type: Array

checkSanity() → {Array}

Non-contextual sanity checks for the transaction. Will mostly verify coin and output values.

Source:

primitives/tx.js, line 1435

See:

CheckTransaction()

Returns:

[valid, reason, score]

Type: Array

checksig(index, prev, value, sig, key, version) → {Boolean}

Verify signature.

Parameters:

Name	Type	Description
`index`	Number
`prev`	Script
`value`	Amount
`sig`	Buffer
`key`	Buffer
`version`	Number

Source:

primitives/tx.js, line 733

Returns:

Type: Boolean

checkStandard() → {Array}

Non-contextual checks to determine whether the transaction has all standard output script types and standard input script size with only pushdatas in the code. Will mostly verify coin and output values.

Source:

primitives/tx.js, line 1510

See:

IsStandardTx()

Returns:

[valid, reason, score]

Type: Array

clone() → {TX}

Clone the transaction.

Source:

primitives/tx.js, line 125

Returns:

Type: TX

format(view, entry, index) → {Object}

Inspect the transaction and return a more user-friendly representation of the data.

Parameters:

Name	Type	Description
`view`	CoinView
`entry`	ChainEntry
`index`	Number

Source:

primitives/tx.js, line 2082

Returns:

Type: Object

(private) frame() → {RawTX}

Serialize the transaction. Note that this is cached. This will use the witness serialization if a witness is present.

Source:

primitives/tx.js, line 295

Returns:

Type: RawTX

(private) frameNormal() → {RawTX}

Serialize transaction without witness.

Source:

primitives/tx.js, line 2394

Returns:

Type: RawTX

(private) frameWitness() → {RawTX}

Serialize transaction with witness. Calculates the witness size as it is framing (exposed on return value as witness).

Source:

primitives/tx.js, line 2409

Returns:

Type: RawTX

(private) fromJSON(json)

Inject properties from a json object.

Parameters:

Name	Type	Description
`json`	Object

Source:

primitives/tx.js, line 2206

(private) fromOptions(options)

Inject properties from options object.

Parameters:

Name	Type	Description
`options`	Object

Source:

primitives/tx.js, line 80

(private) fromRaw(data)

Inject properties from serialized data.

Parameters:

Name	Type	Description
`data`	Buffer

Source:

primitives/tx.js, line 2268

(private) fromReader(br, block)

Inject properties from buffer reader.

Parameters:

Name	Type	Description
`br`	BufferReader
`block`	Boolean

Source:

primitives/tx.js, line 2279

(private) fromWitnessReader(br, block)

Inject properties from serialized buffer reader (witness serialization).

Parameters:

Name	Type	Description
`br`	BufferReader
`block`	Boolean

Source:

primitives/tx.js, line 2323

getAddresses(view) → {Array.<Address>}

Get all addresses.

Parameters:

Name	Type	Description
`view`	CoinView \| null

Source:

primitives/tx.js, line 1136

Returns:

addresses

Type: Array.<Address>

getBaseSize() → {Number}

Calculate the size of the transaction without the witness. with the witness included.

Source:

primitives/tx.js, line 407

Returns:

size

Type: Number

getChainValue(view) → {Number}

Calculate the transaction's on-chain value.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 1849

Returns:

Type: Number

getFee(view) → {Amount}

Calculate the fee for the transaction.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 985

Returns:

fee (zero if not all coins are available).

Type: Amount

getHashes(view) → {Array.<Hash>}

Get all address hashes.

Parameters:

Name	Type	Description
`view`	CoinView \| null

Source:

primitives/tx.js, line 1176

Returns:

hashes

Type: Array.<Hash>

getInputAddresses(view) → {Array.<Address>}

Get all input addresses.

Parameters:

Name	Type	Description
`view`	CoinView \| null

Source:

primitives/tx.js, line 1115

Returns:

addresses

Type: Array.<Address>

getInputHashes(view) → {Array.<Hash>}

Get all input address hashes.

Parameters:

Name	Type	Description
`view`	CoinView \| null

Source:

primitives/tx.js, line 1147

Returns:

hashes

Type: Array.<Hash>

getInputValue(view) → {Amount}

Calculate the total input value.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 998

Returns:

value

Type: Amount

getJSON(network, view, entry, index) → {Object}

Convert the transaction to an object suitable for JSON serialization. Note that the hashes will be reversed to abide by bitcoind's legacy of little-endian uint256s.

Parameters:

Name	Type	Description
`network`	Network
`view`	CoinView
`entry`	ChainEntry
`index`	Number

Source:

primitives/tx.js, line 2155

Returns:

Type: Object

getLegacySigops() → {Number}

Calculate legacy (inaccurate) sigop count.

Source:

primitives/tx.js, line 1311

Returns:

sigop count

Type: Number

getMinFee(sizenullable, ratenullable) → {Amount}

Calculate minimum fee in order for the transaction to be relayable (not the constant min relay fee).

Parameters:

Name	Type	Attributes	Description
`size`	Number	<nullable>	If not present, max size estimation will be calculated and used.
`rate`	Rate	<nullable>	Rate of satoshi per kB.

Source:

primitives/tx.js, line 1899

Returns:

fee

Type: Amount

getModifiedSize(sizenullable) → {Number}

Calculate the modified size of the transaction. This is used in the mempool for calculating priority.

Parameters:

Name	Type	Attributes	Description
`size`	Number	<nullable>	The size to modify. If not present, virtual size will be used.

Source:

primitives/tx.js, line 1790

Returns:

Modified size.

Type: Number

getNormalSizes() → {RawTX}

Calculate the real size of the transaction without the witness vector.

Source:

primitives/tx.js, line 2492

Returns:

Type: RawTX

getOutputAddresses() → {Array.<Address>}

Get all output addresses.

Source:

primitives/tx.js, line 1125

Returns:

addresses

Type: Array.<Address>

getOutputHashes() → {Array.<Hash>}

Get all output address hashes.

Source:

primitives/tx.js, line 1161

Returns:

hashes

Type: Array.<Hash>

getOutputValue() → {Amount}

Calculate the total output value.

Source:

primitives/tx.js, line 1018

Returns:

value

Type: Amount

getPosition() → {Object}

Return the offset and size of the transaction. Useful when the transaction is deserialized within a block.

Source:

primitives/tx.js, line 330

Returns:

Contains size and offset.

Type: Object

getPrevout() → {Array.<Hash>}

Get all unique outpoint hashes.

Source:

primitives/tx.js, line 1948

Returns:

Outpoint hashes.

Type: Array.<Hash>

getPriority(view, height, sizenullable) → {Number}

Calculate the transaction priority.

Parameters:

Name	Type	Attributes	Description
`view`	CoinView
`height`	Number
`size`	Number	<nullable>	Size to calculate priority based on. If not present, virtual size will be used.

Source:

primitives/tx.js, line 1812

Returns:

Type: Number

getRate(view, sizenullable) → {Rate}

Calculate the transaction's rate based on size and fees. Size will be calculated if not present.

Parameters:

Name	Type	Attributes	Description
`view`	CoinView
`size`	Number	<nullable>

Source:

primitives/tx.js, line 1931

Returns:

Type: Rate

getRoundFee(sizenullable, ratenullable) → {Amount}

Calculate the minimum fee in order for the transaction to be relayable, but _round to the nearest kilobyte when taking into account size.

Parameters:

Name	Type	Attributes	Description
`size`	Number	<nullable>	If not present, max size estimation will be calculated and used.
`rate`	Rate	<nullable>	Rate of satoshi per kB.

Source:

primitives/tx.js, line 1916

Returns:

fee

Type: Amount

getScripthashSigops(view) → {Number}

Calculate accurate sigop count, taking into account redeem scripts.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 1335

Returns:

sigop count

Type: Number

getSigops(view, flagsnullable) → {Number}

Calculate virtual sigop count.

Parameters:

Name	Type	Attributes	Description
`view`	CoinView
`flags`	VerifyFlags	<nullable>

Source:

primitives/tx.js, line 1411

Returns:

sigop count

Type: Number

getSigopsCost(view, flagsnullable) → {Number}

Calculate sigops cost, taking into account witness programs.

Parameters:

Name	Type	Attributes	Description
`view`	CoinView
`flags`	VerifyFlags	<nullable>

Source:

primitives/tx.js, line 1387

Returns:

sigop weight

Type: Number

getSigopsSize(sigops) → {Number}

Calculate the virtual size of the transaction (weighted against bytes per sigop cost).

Parameters:

Name	Type	Description
`sigops`	Number	Sigops cost.

Source:

primitives/tx.js, line 371

Returns:

vsize

Type: Number

getSize() → {Number}

Calculate the real size of the transaction with the witness included.

Source:

primitives/tx.js, line 396

Returns:

size

Type: Number

getSizes() → {Object}

Calculate total size and size of the witness bytes.

Source:

primitives/tx.js, line 344

Returns:

Contains size and witness.

Type: Object

getVirtualSize() → {Number}

Calculate the virtual size of the transaction. Note that this is cached.

Source:

primitives/tx.js, line 359

Returns:

vsize

Type: Number

getWeight() → {Number}

Calculate the weight of the transaction. Note that this is cached.

Source:

primitives/tx.js, line 384

Returns:

weight

Type: Number

getWitnessSigops(view) → {Number}

Calculate accurate sigop count, taking into account redeem scripts.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 1362

Returns:

sigop count

Type: Number

getWitnessSizes() → {RawTX}

Calculate the real size of the transaction with the witness included.

Source:

primitives/tx.js, line 2518

Returns:

Type: RawTX

hasCoins(view) → {Boolean}

Test whether the transaction has all coins available.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 1192

Returns:

Type: Boolean

hash(encnullable) → {Hash|Buffer}

Hash the transaction with the non-witness serialization.

Parameters:

Name	Type	Attributes	Description
`enc`	String	<nullable>	Can be `'hex'` or `null`.

Source:

primitives/tx.js, line 178

Returns:

hash

Type: Hash | Buffer

(private) hashSize(index, prev, type) → {Number}

Calculate sighash size.

Parameters:

Name	Type	Description
`index`	Number
`prev`	Script
`type`	Number

Source:

primitives/tx.js, line 588

Returns:

Type: Number

hasStandardInputs(view, flagsnullable) → {Boolean}

Perform contextual checks to verify coin and input script standardness (including the redeem script).

Parameters:

Name	Type	Attributes	Description
`view`	CoinView
`flags`	VerifyFlags	<nullable>

Source:

primitives/tx.js, line 1558

See:

AreInputsStandard()

Returns:

Type: Boolean

hasStandardWitness(view) → {Boolean}

Perform contextual checks to verify coin and witness standardness.

Parameters:

Name	Type	Description
`view`	CoinView

Source:

primitives/tx.js, line 1597

See:

IsBadWitness()

Returns:

Type: Boolean

hasWitness() → {Boolean}

Test whether the transaction has a non-empty witness.

Source:

primitives/tx.js, line 417

Returns:

Type: Boolean

(private) inject(tx) → {TX}

Inject properties from tx. Used for cloning.

Parameters:

Name	Type	Description
`tx`	TX

Source:

primitives/tx.js, line 137

Returns:

Type: TX

inspectSymbol() → {Object}

Inspect the transaction and return a more user-friendly representation of the data.

Source:

primitives/tx.js, line 2069

Returns:

Type: Object

isCoinbase() → {Boolean}

Test whether the transaction is a coinbase by examining the inputs.

Source:

primitives/tx.js, line 957

Returns:

Type: Boolean

isFinal(height, time) → {Boolean}

Check finality of transaction by examining nLocktime and nSequence values.

Parameters:

Name	Type	Description
`height`	Number	Height at which to test. This is usually the chain height, or the chain height + 1 when the transaction entered the mempool.
`time`	Number	Time at which to test. This is usually the chain tip's parent's median time, or the time at which the transaction entered the mempool. If MEDIAN_TIME_PAST is enabled this will be the median time of the chain tip's previous entry's median time.

Source:

primitives/tx.js, line 1220

Returns:

Type: Boolean

Example

tx.isFinal(chain.height + 1, network.now());

isFree(view, heightnullable, sizenullable) → {Boolean}

Determine whether the transaction is above the free threshold in priority. A transaction which passed this test is most likely relayable without a fee.

Parameters:

Name	Type	Attributes	Description
`view`	CoinView
`height`	Number	<nullable>	If not present, tx height or network height will be used.
`size`	Number	<nullable>	If not present, modified size will be calculated and used.

Source:

primitives/tx.js, line 1885

Returns:

Type: Boolean

isRBF() → {Boolean}

Test whether the transaction is replaceable.

Source:

primitives/tx.js, line 966

Returns:

Type: Boolean

isSane() → {Array}

Non-contextual sanity checks for the transaction. Will mostly verify coin and output values.

Source:

primitives/tx.js, line 1423

See:

CheckTransaction()

Returns:

[result, reason, score]

Type: Array

isStandard() → {Array}

Source:

primitives/tx.js, line 1495

See:

IsStandardTx()

Returns:

[valid, reason, score]

Type: Array

isWatched(filter) → {Boolean}

Test a transaction against a bloom filter using the BIP37 matching algorithm. Note that this may update the filter depending on what the update value is.

Parameters:

Name	Type	Description
`filter`	BloomFilter

Source:

primitives/tx.js, line 1971

See:

"Filter matching algorithm":
https://github.com/bitcoin/bips/blob/master/bip-0037.mediawiki

Returns:

True if the transaction matched.

Type: Boolean

refresh()

Clear any cached values.

Source:

primitives/tx.js, line 155

rhash() → {Hash}

Get little-endian tx hash.

Source:

primitives/tx.js, line 2023

Returns:

Type: Hash

rwhash() → {Hash}

Get little-endian wtx hash.

Source:

primitives/tx.js, line 2032

Returns:

Type: Hash

signature(index, prev, value, key, type, version) → {Buffer}

Create a signature suitable for inserting into scriptSigs/witnesses.

Parameters:

Name	Type	Description
`index`	Number	Index of input being signed.
`prev`	Script	Previous output script or redeem script (in the case of witnesspubkeyhash, this should be the generated p2pkh script).
`value`	Amount	Previous output value.
`key`	Buffer
`type`	SighashType
`version`	Number	Sighash version (0=legacy, 1=segwit).

Source:

primitives/tx.js, line 756

Returns:

Signature in DER format.

Type: Buffer

signatureHash(index, prev, value, type, version) → {Buffer}

Get the signature hash of the transaction for signing verifying.

Parameters:

Name	Type	Description
`index`	Number	Index of input being signed/verified.
`prev`	Script	Previous output script or redeem script (in the case of witnesspubkeyhash, this should be the generated p2pkh script).
`value`	Amount	Previous output value.
`type`	SighashType	Sighash type.
`version`	Number	Sighash version (0=legacy, 1=segwit).

Source:

primitives/tx.js, line 441

Returns:

Signature hash.

Type: Buffer

(private) signatureHashV0(index, prev, type) → {Buffer}

Legacy sighashing -- O(n^2).

Parameters:

Name	Type	Description
`index`	Number
`prev`	Script
`type`	SighashType

Source:

primitives/tx.js, line 467

Returns:

Type: Buffer

(private) signatureHashV1(index, prev, value, type) → {Buffer}

Witness sighashing -- O(n).

Parameters:

Name	Type	Description
`index`	Number
`prev`	Script
`value`	Amount
`type`	SighashType

Source:

primitives/tx.js, line 637

Returns:

Type: Buffer

toInv() → {InvItem}

Convert the tx to an inv item.

Source:

primitives/tx.js, line 2059

Returns:

Type: InvItem

toJSON() → {Object}

Convert the transaction to an object suitable for JSON serialization.

Source:

primitives/tx.js, line 2139

Returns:

Type: Object

toNormal() → {Buffer}

Serialize the transaction without the witness vector, regardless of whether it is a witness transaction or not.

Source:

primitives/tx.js, line 243

Returns:

Serialized transaction.

Type: Buffer

toNormalWriter(bw)

Write the transaction to a buffer writer. Uses non-witness serialization.

Parameters:

Name	Type	Description
`bw`	BufferWriter

Source:

primitives/tx.js, line 278

toRaw() → {Buffer}

Serialize the transaction. Note that this is cached. This will use the witness serialization if a witness is present.

Source:

primitives/tx.js, line 232

Returns:

Serialized transaction.

Type: Buffer

toWriter(bw, block)

Write the transaction to a buffer writer.

Parameters:

Name	Type	Description
`bw`	BufferWriter
`block`	Boolean

Source:

primitives/tx.js, line 255

txid() → {Hash}

Get little-endian tx hash.

Source:

primitives/tx.js, line 2041

Returns:

Type: Hash

verify(view, flagsopt, nullable) → {Boolean}

Verify all transaction inputs.

Parameters:

Name	Type	Attributes	Default	Description
`view`	CoinView
`flags`	VerifyFlags	<optional> <nullable>	STANDARD_VERIFY_FLAGS

Source:

primitives/tx.js, line 879

Returns:

Whether the inputs are valid.

Type: Boolean

(async) verifyAsync(view, flagsopt, nullable, poolnullable) → {Promise}

Verify the transaction inputs on the worker pool (if workers are enabled).

Parameters:

Name	Type	Attributes	Default
`view`	CoinView
`flags`	VerifyFlags	<optional> <nullable>	STANDARD_VERIFY_FLAGS
`pool`	WorkerPool	<nullable>

Source:

primitives/tx.js, line 919

Returns:

Type: Promise

verifyInput(index, coin, flagsopt) → {Boolean}

Verify a transaction input.

Parameters:

Name	Type	Attributes	Default	Description
`index`	Number			Index of output being verified.
`coin`	Coin \| Output			Previous output.
`flags`	VerifyFlags	<optional>	STANDARD_VERIFY_FLAGS

Source:

primitives/tx.js, line 899

Returns:

Whether the input is valid.

Type: Boolean

(async) verifyInputAsync(index, coin, flagsopt, poolnullable) → {Promise}

Verify a transaction input asynchronously.

Parameters:

Name	Type	Attributes	Default	Description
`index`	Number			Index of output being verified.
`coin`	Coin \| Output			Previous output.
`flags`	VerifyFlags	<optional>	STANDARD_VERIFY_FLAGS
`pool`	WorkerPool	<nullable>

Source:

primitives/tx.js, line 940

Returns:

Type: Promise

verifyInputs(view, height) → {Boolean}

Parameters:

Name	Type	Description
`view`	CoinView
`height`	Number	Height at which the transaction is being spent. In the mempool this is the chain height plus one at the time it entered the pool.

Source:

primitives/tx.js, line 1719

Returns:

Type: Boolean

verifyLocktime(index, predicate) → {Boolean}

Verify the absolute locktime of a transaction. Called by OP_CHECKLOCKTIMEVERIFY.

Parameters:

Name	Type	Description
`index`	Number	Index of input being verified.
`predicate`	Number	Locktime to verify against.

Source:

primitives/tx.js, line 1245

Returns:

Type: Boolean

verifySequence(index, predicate) → {Boolean}

Verify the relative locktime of an input. Called by OP_CHECKSEQUENCEVERIFY.

Parameters:

Name	Type	Description
`index`	Number	Index of input being verified.
`predicate`	Number	Relative locktime to verify against.

Source:

primitives/tx.js, line 1273

Returns:

Type: Boolean

witnessHash(encnullable) → {Hash|Buffer}

Hash the transaction with the witness serialization, return the wtxid (normal hash if no witness is present, all zeroes if coinbase).

Parameters:

Name	Type	Attributes	Description
`enc`	String	<nullable>	Can be `'hex'` or `null`.

Source:

primitives/tx.js, line 209

Returns:

hash

Type: Hash | Buffer

(private) writeNormal(bw) → {RawTX}

Serialize transaction without witness.

Parameters:

Name	Type	Description
`bw`	BufferWriter

Source:

primitives/tx.js, line 2424

Returns:

Type: RawTX

(private) writeWitness(bw) → {RawTX}

Serialize transaction with witness. Calculates the witness size as it is framing (exposed on return value as witness).

Parameters:

Name	Type	Description
`bw`	BufferWriter

Source:

primitives/tx.js, line 2453

Returns:

Type: RawTX

wtxid() → {Hash}

Get little-endian wtx hash.

Source:

primitives/tx.js, line 2050

Returns:

Type: Hash