kadena account
Use kadena account to add, manage, and fund onchain accounts with fungible tokens, for example, by transferring coin.
Basic usage
The basic syntax for the kadena account command is:
kadena account <action> [arguments] [flags]kadena account <action> [arguments] [flags]Actions
Use the following actions to specify the operation you want to perform.
| Use this action | To do this |
|---|---|
| add | Add an account from an existing key or from an existing wallet. |
| delete | Delete one or more existing accounts. |
| details | Get details for an account. |
| fund | Fund an existing or new account. |
| list | List available account information. |
| name-to-address | Resolve a .kda name to a k:address (kadena names) |
| address-to-name | Resolve a k:address to a .kda name (kadena names) |
Flags
You can use the following optional flags with kadena account commands.
| Use this flag | To do this |
|---|---|
| -h, --help | Display usage information. |
| -q, --quiet | Eliminate interactive prompts and confirmations to enable automation of tasks. |
| -V, --version | Display version information. |
| --json | Format command results sent to standard output (stdout) using JSON format. |
| --yaml | Format command results sent to standard output (stdout) using YAML format. |
kadena account add
Use kadena account add to add a new local account manually from existing keys or from a wallet.
The parameters required depend on the type of account you specify using the --type command-line option.
Use --type manual to add an account manually from existing local keys.
Use --type wallet to add an account to an existing wallet.
Basic usage
The basic syntax for the kadena account add command is:
kadena account add --type manual | wallet [arguments] [flags]kadena account add --type manual | wallet [arguments] [flags]Arguments for manual
You can use the following command-line arguments with the kadena account add --type manual command:
| Use this argument | To do this |
|---|---|
| -t, --type manual | Specify the type of account to add. Usemanual to add an account manually from existing keys. |
| -l, --account-alias aliasName | Specify an alias for the account. |
| -f, --fungible fungible | Specify the fungible module name. The default is coin. |
| -p, --predicate predicate | Specify the predicate to use for the account. You can specify on the the keys-all, keys-any, or keys-2 built-in predicates or a custom predicate. |
| -k, --public-keys publickey1, publickey2, ... | Specify a comma-separated list of public keys. |
| -v, --verify | Verify account details on the blockchain. |
| -n, --network networkName | Specify the name of the network if you want to verify the account details on the blockchain. |
| -c, --chain-id id | Specify the chain identifier if you want to verify the account details on the blockchain. |
| -a, --account-name accountName | Provide an account name. |
If you want to verify the account details on the blockchain, you must provide the network name and chain identifier.
Arguments for wallet
You can use the following command-line arguments with the kadena account add --type wallet command:
| Use this argument | To do this |
|---|---|
| -t, --type wallet | Specify the type of account to add. Use wallet to add a wallet account. |
| -l, --account-alias aliasName | Specify an alias for the account. |
| -a, --account-name accountName | Provide an account name. |
| -f, --fungible fungible | Specify the fungible module name. The default is coin. |
| -k, --public-keys publickey1, publickey2, ... | Specify a comma-separated list of public keys. |
| -p, --predicate predicate | Specify the predicate to use for the account. You can specify on the the keys-all, keys-any, or keys-2 built-in predicates or a custom predicate. |
| -w, --wallet-name walletName | Provide the name of the wallet. |
| --password-file passwordFile | Specify the path to a file containing the password for the wallet. Alternatively, passwords can be passed via stdin. This option is only required only if you choose auto generate keys from the wallet. |
Examples
To add account information interactively, run the following command:
kadena account addkadena account addThis command prompts you to select the method for providing the public keys for the new account. If you have a wallet, you can add a new account based on the public key and secret key pair generated for that wallet. If you have other public keys that you want to use, you can add an account by entering the keys manually.
To add an account locally from an account that exists on the Kadena test network and chain identifier 1, run a command similar to the following:
kadena account add --type=manual --account-alias=pistolas-testnet --account-name=k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e --fungible=coin --verify --network=testnet --chain-id=1kadena account add --type=manual --account-alias=pistolas-testnet --account-name=k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e --fungible=coin --verify --network=testnet --chain-id=1This command verifies the account details on the Kadena test network and displays a confirmation message similar to the following:
The account configuration "pistolas-testnet" has been saved in .kadena/accounts/pistolas-testnet.yamlThe account configuration "pistolas-testnet" has been saved in .kadena/accounts/pistolas-testnet.yamlTo add an account by providing public keys manually, you can run a command similar to the following:
kadena account add --type="manual" --account-alias=pistolas-publickey --account-name=k:3e7e7db00e2e575a5260b8705ab7663574b186657451d6990316af6bc5108b59 --fungible="coin" --public-keys=3e7e7db00e2e575a5260b8705ab7663574b186657451d6990316af6bc5108b59,99d30af3fa91d78cc06cf53a0d4eb2d7fa2a5a72944cc5451311b455a67a3c1c --predicate=keys-anykadena account add --type="manual" --account-alias=pistolas-publickey --account-name=k:3e7e7db00e2e575a5260b8705ab7663574b186657451d6990316af6bc5108b59 --fungible="coin" --public-keys=3e7e7db00e2e575a5260b8705ab7663574b186657451d6990316af6bc5108b59,99d30af3fa91d78cc06cf53a0d4eb2d7fa2a5a72944cc5451311b455a67a3c1c --predicate=keys-anyThis command prompts you to specify whether you want to verify the account information before adding the account. For example:
? Do you want to verify the account on chain? (Use arrow keys)❯ Yes, verify the account on chain before adding No, add the account without verifying on chain? Do you want to verify the account on chain? (Use arrow keys)❯ Yes, verify the account on chain before adding No, add the account without verifying on chainTo add an account from a wallet, you can run a command similar to the following:
kadena account add --type="wallet" --wallet-name="wallet_name" --account-alias="account_alias" --fungible="coin" --public-keys="7c8939951b61614c30f837d7b02fe4982565962b5665d0e0f836b79720747cb2" --predicate="keys-all"kadena account add --type="wallet" --wallet-name="wallet_name" --account-alias="account_alias" --fungible="coin" --public-keys="7c8939951b61614c30f837d7b02fe4982565962b5665d0e0f836b79720747cb2" --predicate="keys-all"To add an account with wallet type and auto generate keys, you can run a command similar to the following:
kadena account add --type="wallet" --wallet-name="wallet-name" --account-alias="account_alias_testing" --fungible="coin" --public-keys="your_public_key,_generate_" --predicate="keys-all" --password-file="./kadenawallet-pw.txt"kadena account add --type="wallet" --wallet-name="wallet-name" --account-alias="account_alias_testing" --fungible="coin" --public-keys="your_public_key,_generate_" --predicate="keys-all" --password-file="./kadenawallet-pw.txt"kadena account details
Use kadena account details to retrieve information about a specified account.
The account details include the account balance, the guard public keys and predicate, and the account name.
To get this information, you must specify the Kadena network and chain identifier for the account.
Basic usage
The basic syntax for the kadena account details command is:
kadena account details [arguments] [flags]kadena account details [arguments] [flags]Arguments
You can use the following command-line arguments with the kadena account details command:
| Use this argument | To do this |
|---|---|
| -a, --account accountAlias | Specify the account alias or account name you want to retrieve details about. This argument is required. |
| -n, --network networkName | Specify the name of the network where the account exists. This argument is required. |
| -f, --fungible fungible | Specify the type of fungible asset, for example, coin or nft. This argument is required. |
| -c, --chain-ids id | Specify the chain identifier or a range of chain identifiers. For example, you can specify a single chain identifier (1), a continuous range of chain identifiers (0-3), individual chain identifiers (0,1,5) or all chains (all). This argument is required. |
Examples
To get account details for a specific account alias on the Kadena test network and chain 0 formatted as JSON output, you can run a command similar to the following:
kadena account details --json --account=pistolas-testnet --network=testnet --chain-ids=0kadena account details --json --account=pistolas-testnet --network=testnet --chain-ids=0This command returns output similar to the following:
Details of account "pistolas-testnet" on network "testnet04"[ { "0": { "guard": { "pred": "keys-all", "keys": [ "bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" ] }, "balance": 2.99334437103, "account": "k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" } }]Details of account "pistolas-testnet" on network "testnet04"[ { "0": { "guard": { "pred": "keys-all", "keys": [ "bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" ] }, "balance": 2.99334437103, "account": "k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" } }]To get account details for a specific account name on the Kadena test network and chain 1, you can run a command similar to the following:
kadena account details --account=k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e --network=testnet --chain-ids=1kadena account details --account=k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e --network=testnet --chain-ids=1This command prompts you to specify fungible type. For example:
? Enter the name of a fungible: coin? Enter the name of a fungible: coinYou can press Return to accept the default and display account details similar to the following:
Details of account "k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" on network "testnet04"Name ChainID Public Keys Predicate Balance k:bbccc99ec9ee....4e750ba424d35e 1 bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e keys-all 305.98040161094 Executed:kadena account details --account="k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" --network="testnet" --chain-ids="1" --fungible="coin" Details of account "k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" on network "testnet04"Name ChainID Public Keys Predicate Balance k:bbccc99ec9ee....4e750ba424d35e 1 bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e keys-all 305.98040161094 Executed:kadena account details --account="k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" --network="testnet" --chain-ids="1" --fungible="coin" You can specify a range of chain identifiers to query multiple chains at once. Use a comma to specify discrete chains or a hyphen to specify a continuous range of chain identifiers. For example, to get details for an account on the development network chains 1 and 5, you can run a command similar to the following:
kadena account details --account=pistolas-dev --network=devnet --chain-ids=1,5kadena account details --account=pistolas-dev --network=devnet --chain-ids=1,5This command displays account details similar to the following:
Name ChainID Public Keys Predicate Balancek:5ec41b89d323....bc76dc5c35e2c0 1 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 k:5ec41b89d323....bc76dc5c35e2c0 5 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 Name ChainID Public Keys Predicate Balancek:5ec41b89d323....bc76dc5c35e2c0 1 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 k:5ec41b89d323....bc76dc5c35e2c0 5 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 To get account information for a continuous range of chain identifiers, you can run a command similar to the following:
kadena account details --account=pistolas-dev --network=devnet --chain-ids=2-4kadena account details --account=pistolas-dev --network=devnet --chain-ids=2-4This command displays account details similar to the following:
Details of account "pistolas-dev" on network "development"Name ChainID Public Keys Predicate Balancek:5ec41b89d323....bc76dc5c35e2c0 2 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 k:5ec41b89d323....bc76dc5c35e2c0 3 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 k:5ec41b89d323....bc76dc5c35e2c0 4 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 Details of account "pistolas-dev" on network "development"Name ChainID Public Keys Predicate Balancek:5ec41b89d323....bc76dc5c35e2c0 2 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 k:5ec41b89d323....bc76dc5c35e2c0 3 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 k:5ec41b89d323....bc76dc5c35e2c0 4 5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0 keys-all 24 To get account information for all chain identifiers, you can run a command similar to the following:
kadena account details --account=pistolas-dev --network=devnet --chain-ids=allkadena account details --account=pistolas-dev --network=devnet --chain-ids=allkadena account fund
Use kadena account fund to add funds to an account on the testnet or development networks.
This command also creates the account, if it doesn't exist.
Note that you can't use this command to fund an account on the Kadena main network.
If a faucet contract isn't available on the development network for the specified chain identifier, you can use the --deploy-faucet option to fund accounts on the development network.
kadena account fund [arguments] [flags]kadena account fund [arguments] [flags]Arguments
You can use the following command-line arguments with the kadena account fund command:
| Use this argument | To do this |
|---|---|
| -a, --account accountAlias | Specify an alias to store your account information. This argument is required. |
| -m, --amount amount | Specify the number of coins to transfer to fund the account. This argument is required. |
| -n, --network networkName | Specify the name of the network where you want to fund an account. The valid values are devnet and testnet. This argument is required. |
| -c, --chain-ids chainIds | Specify the chain identifiers where you want to fund the account. You can specify individual identifiers, ranges, or all for all chains. This argument is required. |
| -d, --deploy-faucet | Deploy a coin faucet contract to fund the account on the local development network. |
Examples
To fund an account on a single specific chain, you can run a command similar to the following:
kadena account fund --account="pistolas-testnet" --amount="10" --network="testnet" --chain-ids="3"kadena account fund --account="pistolas-testnet" --amount="10" --network="testnet" --chain-ids="3"If the account doesn't exist on the specified chain, the command displays information similar to the following:
Success with Warnings:Account "k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" does not exist on Chain ID(s) 3. So the account will be created on these Chain ID(s). Transaction explorer URL for Chain ID "3" : https://explorer.chainweb.com/testnet/tx/dk-speer0XDAFika0az2k8i4_AzlrtjMPGHZ6gIlF0A✔ Funding account successful. Account "k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" funded with 10 coin(s) on Chain ID(s) "3" in testnet04 network.Use "kadena account details" command to check the balance.Success with Warnings:Account "k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" does not exist on Chain ID(s) 3. So the account will be created on these Chain ID(s). Transaction explorer URL for Chain ID "3" : https://explorer.chainweb.com/testnet/tx/dk-speer0XDAFika0az2k8i4_AzlrtjMPGHZ6gIlF0A✔ Funding account successful. Account "k:bbccc99ec9eeed17d60159fbb88b09e30ec5e63226c34544e64e750ba424d35e" funded with 10 coin(s) on Chain ID(s) "3" in testnet04 network.Use "kadena account details" command to check the balance.To fund an account on a local development network by deploying a faucet contract, you can run a command similar to the following:
kadena account fund --account="myalias" --amount="20" --network="devnet" --chain-ids="17" --deploy-faucet
This command requires you to have the development network running on your local host or accessible from your local computer. For information about setting up a local development network, see Set up a local development network.
You can specify a range of chain identifiers to fund an account across multiple chains. Use a comma to specify discrete chains or a hyphen to specify a continuous range of chain identifiers. For example, to fund an account on the development network chains 1 and 3, you can run a command similar to the following:
kadena account fund --account="myalias" --amount="10" --network="devnet" --chain-ids="1,3"kadena account fund --account="myalias" --amount="10" --network="devnet" --chain-ids="1,3"To fund an account across a continuous range of chain identifiers, you can run a command similar to the following:
kadena account fund --amount="20" --account="chainweaver-0" --network="devnet" --chain-ids="3-6" kadena account fund --amount="20" --account="chainweaver-0" --network="devnet" --chain-ids="3-6" This command displays the request keys for the transaction on each chain, then confirmation similar to the following:
Transaction explorer URL for Chain ID "3" : http://localhost:8080/explorer/development/tx/KCnnIKZG3hiurKUVJUMK17ED55G7pj6xy8Ng4Sfj154Chain ID "4" : http://localhost:8080/explorer/development/tx/Zu3xmLGRQ6lY_N1jBUKpVRDZB3tRwy-PConW5Sb8YD0Chain ID "5" : http://localhost:8080/explorer/development/tx/phM7ODgdNpdLyUD64xhaStWmA3ywk-1sjVFUM8tiDsQChain ID "6" : http://localhost:8080/explorer/development/tx/GpibIRZ1DNBiSuxxWszUMsHmZQoiy6_uDsE3zVmq3To✔ Funding account successful. Account "k:5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0" funded with 2 coin(s) on Chain ID(s) "3, 4, 5, 6" in development network.Use "kadena account details" command to check the balance.Transaction explorer URL for Chain ID "3" : http://localhost:8080/explorer/development/tx/KCnnIKZG3hiurKUVJUMK17ED55G7pj6xy8Ng4Sfj154Chain ID "4" : http://localhost:8080/explorer/development/tx/Zu3xmLGRQ6lY_N1jBUKpVRDZB3tRwy-PConW5Sb8YD0Chain ID "5" : http://localhost:8080/explorer/development/tx/phM7ODgdNpdLyUD64xhaStWmA3ywk-1sjVFUM8tiDsQChain ID "6" : http://localhost:8080/explorer/development/tx/GpibIRZ1DNBiSuxxWszUMsHmZQoiy6_uDsE3zVmq3To✔ Funding account successful. Account "k:5ec41b89d323398a609ffd54581f2bd6afc706858063e8f3e8bc76dc5c35e2c0" funded with 2 coin(s) on Chain ID(s) "3, 4, 5, 6" in development network.Use "kadena account details" command to check the balance.To fund an account across all chains on the testnet, you can run a command similar to the following
kadena account fund --amount=2 --account=pistolas-dev --network=devnet --chain-ids=allkadena account fund --amount=2 --account=pistolas-dev --network=devnet --chain-ids=allIf you try to fund an account too soon after a previous fund request, the command will fail with an error similar to the following:
Error on Chain ID 3 - Failed to transfer fund : "Coin can be requested every 30 minutes"Error on Chain ID 3 - Failed to transfer fund : "Coin can be requested every 30 minutes"kadena account name-to-address
Use kadena account name-to-address to resolve a .kda name to a k: account name
By convention, accounts with the k: prefix are Kadena account principals with a single public key and the keys-all predicate.
kadena account name-to-address [arguments] [flags]kadena account name-to-address [arguments] [flags]Arguments
You can use the following command-line arguments with the kadena account name-to-address command:
| Use this argument | To do this |
|---|---|
| -n, --network networkName | Specify the name of the network where the account exists. |
| -a, --account-kdn-name kdaAccountName | Specify the .kda name to resolve to a k: account. |
Examples
To map the specified .kda name to an account that uses the k: prefix followed by a public key, you can run a command similar to the following:
kadena account name-to-address --network="mainnet" --account-kdn-name="kadena.kda"kadena account name-to-address --network="mainnet" --account-kdn-name="kadena.kda"kadena account address-to-name
Use kadena account address-to-name to resolve an account name with the k: prefix to a .kda name.
kadena account address-to-name [arguments] [flags]kadena account address-to-name [arguments] [flags]Arguments
You can use the following command-line arguments with the kadena account address-to-name command:
| Use this argument | To do this |
|---|---|
| -n, --network networkName | Specify the name of the network where the account exists. |
| -a, --account-kdn-address accountName | Specify the k: account name to resolve to a .kda name |
Examples
To map the specified k: account name to a .kda address, you can run a command similar to the following:
kadena account address-to-name --network="mainnet" --account-kdn-address="k:1d5a5e10eb15355422ad66b6c12167bdbb23b1e1ef674ea032175d220b242ed4"kadena account address-to-name --network="mainnet" --account-kdn-address="k:1d5a5e10eb15355422ad66b6c12167bdbb23b1e1ef674ea032175d220b242ed4"kadena account list
Use kadena account list to list information for a specific account or for all available accounts.
kadena account list [arguments] [flags]kadena account list [arguments] [flags]Arguments
You can use the following command-line arguments with the kadena account list command:
| Use this argument | To do this |
|---|---|
| -a, --account-alias accountAlias | Specify the alias for the account to list. |
Examples
To list information for a specific account, you can run a command similar to the following:
kadena account list --account-alias=pistolas-devkadena account list --account-alias=pistolas-devThis command displays information similar to the following for the specified account:
Alias Name Public Key(s) Predicate Fungiblepistolas-dev k:5ec41b89d323....bc76dc5c35e2c0 5ec41b89d3....dc5c35e2c0 keys-all coin Alias Name Public Key(s) Predicate Fungiblepistolas-dev k:5ec41b89d323....bc76dc5c35e2c0 5ec41b89d3....dc5c35e2c0 keys-all coin To list information for all account, you can run a command similar to the following:
kadena account list --account-alias="all"kadena account list --account-alias="all"This command displays information similar to the following for all available account:
Alias Name Public Key(s) Predicate Fungiblechainweaver-0 chainweaver-0 0f4d6ddea3....357ef6da9f keys-all coin pistolas-dev k:5ec41b89d323....bc76dc5c35e2c0 5ec41b89d3....dc5c35e2c0 keys-all coin pistolas-kda k:61cf22aa8f20....7743bf6c355546 61cf22aa8f....bf6c355546 keys-all coin pistolas-local k:ad833b6bbfc7....28f3249fd5e105 ad833b6bbf....249fd5e105 keys-all coin pistolas-publickey k:3e7e7db00e2e....16af6bc5108b59 3e7e7db00e....6bc5108b59 keys-any coin pistolas-testnet k:bbccc99ec9ee....4e750ba424d35e bbccc99ec9....0ba424d35e keys-all coin Alias Name Public Key(s) Predicate Fungiblechainweaver-0 chainweaver-0 0f4d6ddea3....357ef6da9f keys-all coin pistolas-dev k:5ec41b89d323....bc76dc5c35e2c0 5ec41b89d3....dc5c35e2c0 keys-all coin pistolas-kda k:61cf22aa8f20....7743bf6c355546 61cf22aa8f....bf6c355546 keys-all coin pistolas-local k:ad833b6bbfc7....28f3249fd5e105 ad833b6bbf....249fd5e105 keys-all coin pistolas-publickey k:3e7e7db00e2e....16af6bc5108b59 3e7e7db00e....6bc5108b59 keys-any coin pistolas-testnet k:bbccc99ec9ee....4e750ba424d35e bbccc99ec9....0ba424d35e keys-all coin kadena account delete
Use kadena account delete to delete a local account.
kadena account delete [arguments] [flags]kadena account delete [arguments] [flags]Arguments
You can use the following command-line arguments with the kadena account delete command:
| Use this argument | To do this |
|---|---|
| -a, --account-alias accountAlias | Specify the alias of the account you want to delete. |
| -c, --confirm | Confirm that you want to delete the specified account. |
Examples
To delete an account interactively, run the following command:
kadena account deletekadena account deleteThis command prompts you to select the account alias that you want to delete, then confirm your selection.
To delete a specific account, you can run a command similar to the following:
kadena account delete --account-alias test-wallet --confirmkadena account delete --account-alias test-wallet --confirmThis command displays confirmation similar to the following:
The selected account alias "test-wallet" has been deletedThe selected account alias "test-wallet" has been deletedTo delete all accounts, you can run the following command:
kadena account delete --account-alias="all" --confirmkadena account delete --account-alias="all" --confirm