# Function fixedChainItem

- fixedChainItem<C>(chain): {
  binary: "uint";
  custom: {
  from: (C extends bigint
  ? `bigint(${C})`
  : C extends boolean
  ? `boolean(${C})`
  : C) extends "Solana" | "Ethereum" | "Terra" | "Bsc" | "Polygon" | "Avalanche" | "Oasis" | "Algorand" | "Aurora" | "Fantom" | "Karura" | "Acala" | "Klaytn" | "Celo" | "Near" | "Moonbeam" | "Neon" | "Terra2" | "Injective" | "Osmosis" | "Sui" | "Aptos" | "Arbitrum" | "Optimism" | "Gnosis" | "Pythnet" | "Xpla" | "Btc" | "Base" | "Sei" | "Rootstock" | "Wormchain" | "Cosmoshub" | "Evmos" | "Kujira" | "Sepolia" | "ArbitrumSepolia" | "BaseSepolia" | "OptimismSepolia" | "Holesky"
  ? {
  Acala: 12;
  Algorand: 8;
  Aptos: 22;
  Arbitrum: 23;
  ArbitrumSepolia: 10003;
  Aurora: 9;
  Avalanche: 6;
  Base: 30;
  BaseSepolia: 10004;
  Bsc: 4;
  Btc: 29;
  Celo: 14;
  Cosmoshub: 4000;
  Ethereum: 2;
  Evmos: 4001;
  Fantom: 10;
  Gnosis: 25;
  Holesky: 10006;
  Injective: 19;
  Karura: 11;
  Klaytn: 13;
  Kujira: 4002;
  Moonbeam: 16;
  Near: 15;
  Neon: 17;
  Oasis: 7;
  Optimism: 24;
  OptimismSepolia: 10005;
  Osmosis: 20;
  Polygon: 5;
  Pythnet: 26;
  Rootstock: 33;
  Sei: 32;
  Sepolia: 10002;
  Solana: 1;
  Sui: 21;
  Terra: 3;
  Terra2: 18;
  Wormchain: 3104;
  Xpla: 28;
  }[Object] extends {
  [key: string]: unknown;
  }
  ? {
  Acala: 12;
  Algorand: 8;
  Aptos: 22;
  Arbitrum: 23;
  ArbitrumSepolia: 10003;
  Aurora: 9;
  Avalanche: 6;
  Base: 30;
  BaseSepolia: 10004;
  Bsc: 4;
  Btc: 29;
  Celo: 14;
  Cosmoshub: 4000;
  Ethereum: 2;
  Evmos: 4001;
  Fantom: 10;
  Gnosis: 25;
  Holesky: 10006;
  Injective: 19;
  Karura: 11;
  Klaytn: 13;
  Kujira: 4002;
  Moonbeam: 16;
  Near: 15;
  Neon: 17;
  Oasis: 7;
  Optimism: 24;
  OptimismSepolia: 10005;
  Osmosis: 20;
  Polygon: 5;
  Pythnet: 26;
  Rootstock: 33;
  Sei: 32;
  Sepolia: 10002;
  Solana: 1;
  Sui: 21;
  Terra: 3;
  Terra2: 18;
  Wormchain: 3104;
  Xpla: 28;
  }[Object]
  : {
  Acala: 12;
  Algorand: 8;
  Aptos: 22;
  Arbitrum: 23;
  ArbitrumSepolia: 10003;
  Aurora: 9;
  Avalanche: 6;
  Base: 30;
  BaseSepolia: 10004;
  Bsc: 4;
  Btc: 29;
  Celo: 14;
  Cosmoshub: 4000;
  Ethereum: 2;
  Evmos: 4001;
  Fantom: 10;
  Gnosis: 25;
  Holesky: 10006;
  Injective: 19;
  Karura: 11;
  Klaytn: 13;
  Kujira: 4002;
  Moonbeam: 16;
  Near: 15;
  Neon: 17;
  Oasis: 7;
  Optimism: 24;
  OptimismSepolia: 10005;
  Osmosis: 20;
  Polygon: 5;
  Pythnet: 26;
  Rootstock: 33;
  Sei: 32;
  Sepolia: 10002;
  Solana: 1;
  Sui: 21;
  Terra: 3;
  Terra2: 18;
  Wormchain: 3104;
  Xpla: 28;
  }[Object]
  : never;
  to: C;
  };
  size: 2;
  }

- #### Type Parameters

  - #### C extends "Solana" | "Ethereum" | "Terra" | "Bsc" | "Polygon" | "Avalanche" | "Oasis" | "Algorand" | "Aurora" | "Fantom" | "Karura" | "Acala" | "Klaytn" | "Celo" | "Near" | "Moonbeam" | "Neon" | "Terra2" | "Injective" | "Osmosis" | "Sui" | "Aptos" | "Arbitrum" | "Optimism" | "Gnosis" | "Pythnet" | "Xpla" | "Btc" | "Base" | "Sei" | "Rootstock" | "Wormchain" | "Cosmoshub" | "Evmos" | "Kujira" | "Sepolia" | "ArbitrumSepolia" | "BaseSepolia" | "OptimismSepolia" | "Holesky"

  #### Parameters

  - ##### chain: C

  #### Returns {
  binary: "uint";
  custom: {
  from: (C extends bigint
  ? `bigint(${C})`
  : C extends boolean
  ? `boolean(${C})`
  : C) extends "Solana" | "Ethereum" | "Terra" | "Bsc" | "Polygon" | "Avalanche" | "Oasis" | "Algorand" | "Aurora" | "Fantom" | "Karura" | "Acala" | "Klaytn" | "Celo" | "Near" | "Moonbeam" | "Neon" | "Terra2" | "Injective" | "Osmosis" | "Sui" | "Aptos" | "Arbitrum" | "Optimism" | "Gnosis" | "Pythnet" | "Xpla" | "Btc" | "Base" | "Sei" | "Rootstock" | "Wormchain" | "Cosmoshub" | "Evmos" | "Kujira" | "Sepolia" | "ArbitrumSepolia" | "BaseSepolia" | "OptimismSepolia" | "Holesky"
  ? {
  Acala: 12;
  Algorand: 8;
  Aptos: 22;
  Arbitrum: 23;
  ArbitrumSepolia: 10003;
  Aurora: 9;
  Avalanche: 6;
  Base: 30;
  BaseSepolia: 10004;
  Bsc: 4;
  Btc: 29;
  Celo: 14;
  Cosmoshub: 4000;
  Ethereum: 2;
  Evmos: 4001;
  Fantom: 10;
  Gnosis: 25;
  Holesky: 10006;
  Injective: 19;
  Karura: 11;
  Klaytn: 13;
  Kujira: 4002;
  Moonbeam: 16;
  Near: 15;
  Neon: 17;
  Oasis: 7;
  Optimism: 24;
  OptimismSepolia: 10005;
  Osmosis: 20;
  Polygon: 5;
  Pythnet: 26;
  Rootstock: 33;
  Sei: 32;
  Sepolia: 10002;
  Solana: 1;
  Sui: 21;
  Terra: 3;
  Terra2: 18;
  Wormchain: 3104;
  Xpla: 28;
  }[Object] extends {
  [key: string]: unknown;
  }
  ? {
  Acala: 12;
  Algorand: 8;
  Aptos: 22;
  Arbitrum: 23;
  ArbitrumSepolia: 10003;
  Aurora: 9;
  Avalanche: 6;
  Base: 30;
  BaseSepolia: 10004;
  Bsc: 4;
  Btc: 29;
  Celo: 14;
  Cosmoshub: 4000;
  Ethereum: 2;
  Evmos: 4001;
  Fantom: 10;
  Gnosis: 25;
  Holesky: 10006;
  Injective: 19;
  Karura: 11;
  Klaytn: 13;
  Kujira: 4002;
  Moonbeam: 16;
  Near: 15;
  Neon: 17;
  Oasis: 7;
  Optimism: 24;
  OptimismSepolia: 10005;
  Osmosis: 20;
  Polygon: 5;
  Pythnet: 26;
  Rootstock: 33;
  Sei: 32;
  Sepolia: 10002;
  Solana: 1;
  Sui: 21;
  Terra: 3;
  Terra2: 18;
  Wormchain: 3104;
  Xpla: 28;
  }[Object]
  : {
  Acala: 12;
  Algorand: 8;
  Aptos: 22;
  Arbitrum: 23;
  ArbitrumSepolia: 10003;
  Aurora: 9;
  Avalanche: 6;
  Base: 30;
  BaseSepolia: 10004;
  Bsc: 4;
  Btc: 29;
  Celo: 14;
  Cosmoshub: 4000;
  Ethereum: 2;
  Evmos: 4001;
  Fantom: 10;
  Gnosis: 25;
  Holesky: 10006;
  Injective: 19;
  Karura: 11;
  Klaytn: 13;
  Kujira: 4002;
  Moonbeam: 16;
  Near: 15;
  Neon: 17;
  Oasis: 7;
  Optimism: 24;
  OptimismSepolia: 10005;
  Osmosis: 20;
  Polygon: 5;
  Pythnet: 26;
  Rootstock: 33;
  Sei: 32;
  Sepolia: 10002;
  Solana: 1;
  Sui: 21;
  Terra: 3;
  Terra2: 18;
  Wormchain: 3104;
  Xpla: 28;
  }[Object]
  : never;
  to: C;
  };
  size: 2;
  }

  - ##### `Readonly` binary: "uint"

  - ##### `Readonly` custom: {
    from: (C extends bigint
    ? `bigint(${C})`
    : C extends boolean
    ? `boolean(${C})`
    : C) extends "Solana" | "Ethereum" | "Terra" | "Bsc" | "Polygon" | "Avalanche" | "Oasis" | "Algorand" | "Aurora" | "Fantom" | "Karura" | "Acala" | "Klaytn" | "Celo" | "Near" | "Moonbeam" | "Neon" | "Terra2" | "Injective" | "Osmosis" | "Sui" | "Aptos" | "Arbitrum" | "Optimism" | "Gnosis" | "Pythnet" | "Xpla" | "Btc" | "Base" | "Sei" | "Rootstock" | "Wormchain" | "Cosmoshub" | "Evmos" | "Kujira" | "Sepolia" | "ArbitrumSepolia" | "BaseSepolia" | "OptimismSepolia" | "Holesky"
    ? {
    Acala: 12;
    Algorand: 8;
    Aptos: 22;
    Arbitrum: 23;
    ArbitrumSepolia: 10003;
    Aurora: 9;
    Avalanche: 6;
    Base: 30;
    BaseSepolia: 10004;
    Bsc: 4;
    Btc: 29;
    Celo: 14;
    Cosmoshub: 4000;
    Ethereum: 2;
    Evmos: 4001;
    Fantom: 10;
    Gnosis: 25;
    Holesky: 10006;
    Injective: 19;
    Karura: 11;
    Klaytn: 13;
    Kujira: 4002;
    Moonbeam: 16;
    Near: 15;
    Neon: 17;
    Oasis: 7;
    Optimism: 24;
    OptimismSepolia: 10005;
    Osmosis: 20;
    Polygon: 5;
    Pythnet: 26;
    Rootstock: 33;
    Sei: 32;
    Sepolia: 10002;
    Solana: 1;
    Sui: 21;
    Terra: 3;
    Terra2: 18;
    Wormchain: 3104;
    Xpla: 28;
    }[Object] extends {
    [key: string]: unknown;
    }
    ? {
    Acala: 12;
    Algorand: 8;
    Aptos: 22;
    Arbitrum: 23;
    ArbitrumSepolia: 10003;
    Aurora: 9;
    Avalanche: 6;
    Base: 30;
    BaseSepolia: 10004;
    Bsc: 4;
    Btc: 29;
    Celo: 14;
    Cosmoshub: 4000;
    Ethereum: 2;
    Evmos: 4001;
    Fantom: 10;
    Gnosis: 25;
    Holesky: 10006;
    Injective: 19;
    Karura: 11;
    Klaytn: 13;
    Kujira: 4002;
    Moonbeam: 16;
    Near: 15;
    Neon: 17;
    Oasis: 7;
    Optimism: 24;
    OptimismSepolia: 10005;
    Osmosis: 20;
    Polygon: 5;
    Pythnet: 26;
    Rootstock: 33;
    Sei: 32;
    Sepolia: 10002;
    Solana: 1;
    Sui: 21;
    Terra: 3;
    Terra2: 18;
    Wormchain: 3104;
    Xpla: 28;
    }[Object]
    : {
    Acala: 12;
    Algorand: 8;
    Aptos: 22;
    Arbitrum: 23;
    ArbitrumSepolia: 10003;
    Aurora: 9;
    Avalanche: 6;
    Base: 30;
    BaseSepolia: 10004;
    Bsc: 4;
    Btc: 29;
    Celo: 14;
    Cosmoshub: 4000;
    Ethereum: 2;
    Evmos: 4001;
    Fantom: 10;
    Gnosis: 25;
    Holesky: 10006;
    Injective: 19;
    Karura: 11;
    Klaytn: 13;
    Kujira: 4002;
    Moonbeam: 16;
    Near: 15;
    Neon: 17;
    Oasis: 7;
    Optimism: 24;
    OptimismSepolia: 10005;
    Osmosis: 20;
    Polygon: 5;
    Pythnet: 26;
    Rootstock: 33;
    Sei: 32;
    Sepolia: 10002;
    Solana: 1;
    Sui: 21;
    Terra: 3;
    Terra2: 18;
    Wormchain: 3104;
    Xpla: 28;
    }[Object]
    : never;
    to: C;
    }

    - ##### from: (C extends bigint
      ? `bigint(${C})`
      : C extends boolean
      ? `boolean(${C})`
      : C) extends "Solana" | "Ethereum" | "Terra" | "Bsc" | "Polygon" | "Avalanche" | "Oasis" | "Algorand" | "Aurora" | "Fantom" | "Karura" | "Acala" | "Klaytn" | "Celo" | "Near" | "Moonbeam" | "Neon" | "Terra2" | "Injective" | "Osmosis" | "Sui" | "Aptos" | "Arbitrum" | "Optimism" | "Gnosis" | "Pythnet" | "Xpla" | "Btc" | "Base" | "Sei" | "Rootstock" | "Wormchain" | "Cosmoshub" | "Evmos" | "Kujira" | "Sepolia" | "ArbitrumSepolia" | "BaseSepolia" | "OptimismSepolia" | "Holesky"
      ? {
      Acala: 12;
      Algorand: 8;
      Aptos: 22;
      Arbitrum: 23;
      ArbitrumSepolia: 10003;
      Aurora: 9;
      Avalanche: 6;
      Base: 30;
      BaseSepolia: 10004;
      Bsc: 4;
      Btc: 29;
      Celo: 14;
      Cosmoshub: 4000;
      Ethereum: 2;
      Evmos: 4001;
      Fantom: 10;
      Gnosis: 25;
      Holesky: 10006;
      Injective: 19;
      Karura: 11;
      Klaytn: 13;
      Kujira: 4002;
      Moonbeam: 16;
      Near: 15;
      Neon: 17;
      Oasis: 7;
      Optimism: 24;
      OptimismSepolia: 10005;
      Osmosis: 20;
      Polygon: 5;
      Pythnet: 26;
      Rootstock: 33;
      Sei: 32;
      Sepolia: 10002;
      Solana: 1;
      Sui: 21;
      Terra: 3;
      Terra2: 18;
      Wormchain: 3104;
      Xpla: 28;
      }[Object] extends {
      [key: string]: unknown;
      }
      ? {
      Acala: 12;
      Algorand: 8;
      Aptos: 22;
      Arbitrum: 23;
      ArbitrumSepolia: 10003;
      Aurora: 9;
      Avalanche: 6;
      Base: 30;
      BaseSepolia: 10004;
      Bsc: 4;
      Btc: 29;
      Celo: 14;
      Cosmoshub: 4000;
      Ethereum: 2;
      Evmos: 4001;
      Fantom: 10;
      Gnosis: 25;
      Holesky: 10006;
      Injective: 19;
      Karura: 11;
      Klaytn: 13;
      Kujira: 4002;
      Moonbeam: 16;
      Near: 15;
      Neon: 17;
      Oasis: 7;
      Optimism: 24;
      OptimismSepolia: 10005;
      Osmosis: 20;
      Polygon: 5;
      Pythnet: 26;
      Rootstock: 33;
      Sei: 32;
      Sepolia: 10002;
      Solana: 1;
      Sui: 21;
      Terra: 3;
      Terra2: 18;
      Wormchain: 3104;
      Xpla: 28;
      }[Object]
      : {
      Acala: 12;
      Algorand: 8;
      Aptos: 22;
      Arbitrum: 23;
      ArbitrumSepolia: 10003;
      Aurora: 9;
      Avalanche: 6;
      Base: 30;
      BaseSepolia: 10004;
      Bsc: 4;
      Btc: 29;
      Celo: 14;
      Cosmoshub: 4000;
      Ethereum: 2;
      Evmos: 4001;
      Fantom: 10;
      Gnosis: 25;
      Holesky: 10006;
      Injective: 19;
      Karura: 11;
      Klaytn: 13;
      Kujira: 4002;
      Moonbeam: 16;
      Near: 15;
      Neon: 17;
      Oasis: 7;
      Optimism: 24;
      OptimismSepolia: 10005;
      Osmosis: 20;
      Polygon: 5;
      Pythnet: 26;
      Rootstock: 33;
      Sei: 32;
      Sepolia: 10002;
      Solana: 1;
      Sui: 21;
      Terra: 3;
      Terra2: 18;
      Wormchain: 3104;
      Xpla: 28;
      }[Object]
      : never

    - ##### to: C

  - ##### `Readonly` size: 2

  - Defined in core/definitions/dist/esm/layout-items/chain.d.ts:13

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