diff --git a/cmd/crates/soroban-spec-tools/src/utils.rs b/cmd/crates/soroban-spec-tools/src/utils.rs
index c96e3a547..c4d4cb557 100644
--- a/cmd/crates/soroban-spec-tools/src/utils.rs
+++ b/cmd/crates/soroban-spec-tools/src/utils.rs
@@ -6,8 +6,9 @@ use std::{
 };
 
 use stellar_xdr::{
-    ReadXdr, ScEnvMetaEntry, ScMetaEntry, ScMetaV0, ScSpecEntry, ScSpecFunctionV0, ScSpecUdtEnumV0,
-    ScSpecUdtErrorEnumV0, ScSpecUdtStructV0, ScSpecUdtUnionV0, StringM,
+    DepthLimitedRead, ReadXdr, ScEnvMetaEntry, ScMetaEntry, ScMetaV0, ScSpecEntry,
+    ScSpecFunctionV0, ScSpecUdtEnumV0, ScSpecUdtErrorEnumV0, ScSpecUdtStructV0, ScSpecUdtUnionV0,
+    StringM,
 };
 
 pub struct ContractSpec {
@@ -59,8 +60,9 @@ impl ContractSpec {
         let mut env_meta_base64 = None;
         let env_meta = if let Some(env_meta) = env_meta {
             env_meta_base64 = Some(base64::encode(env_meta));
-            let mut cursor = Cursor::new(env_meta);
-            ScEnvMetaEntry::read_xdr_iter(&mut cursor)
+            let cursor = Cursor::new(env_meta);
+            let mut depth_limit_read = DepthLimitedRead::new(cursor, 100);
+            ScEnvMetaEntry::read_xdr_iter(&mut depth_limit_read)
                 .collect::<Result<Vec<_>, stellar_xdr::Error>>()?
         } else {
             vec![]
@@ -69,8 +71,9 @@ impl ContractSpec {
         let mut meta_base64 = None;
         let meta = if let Some(meta) = meta {
             meta_base64 = Some(base64::encode(meta));
-            let mut cursor = Cursor::new(meta);
-            ScMetaEntry::read_xdr_iter(&mut cursor)
+            let cursor = Cursor::new(meta);
+            let mut depth_limit_read = DepthLimitedRead::new(cursor, 100);
+            ScMetaEntry::read_xdr_iter(&mut depth_limit_read)
                 .collect::<Result<Vec<_>, stellar_xdr::Error>>()?
         } else {
             vec![]
@@ -79,8 +82,9 @@ impl ContractSpec {
         let mut spec_base64 = None;
         let spec = if let Some(spec) = spec {
             spec_base64 = Some(base64::encode(spec));
-            let mut cursor = Cursor::new(spec);
-            ScSpecEntry::read_xdr_iter(&mut cursor)
+            let cursor = Cursor::new(spec);
+            let mut depth_limit_read = DepthLimitedRead::new(cursor, 100);
+            ScSpecEntry::read_xdr_iter(&mut depth_limit_read)
                 .collect::<Result<Vec<_>, stellar_xdr::Error>>()?
         } else {
             vec![]
diff --git a/cmd/soroban-cli/src/commands/contract/invoke.rs b/cmd/soroban-cli/src/commands/contract/invoke.rs
index e8a466841..0a64fab7e 100644
--- a/cmd/soroban-cli/src/commands/contract/invoke.rs
+++ b/cmd/soroban-cli/src/commands/contract/invoke.rs
@@ -13,9 +13,9 @@ use soroban_env_host::{
     events::HostEvent,
     storage::Storage,
     xdr::{
-        self, AccountId, Error as XdrError, Hash, HostFunction, InvokeHostFunctionOp,
-        LedgerEntryData, LedgerFootprint, LedgerKey, LedgerKeyAccount, Memo, MuxedAccount,
-        Operation, OperationBody, Preconditions, PublicKey, ScAddress, ScSpecEntry,
+        self, AccountId, Error as XdrError, Hash, HostFunction, InvokeContractArgs,
+        InvokeHostFunctionOp, LedgerEntryData, LedgerFootprint, LedgerKey, LedgerKeyAccount, Memo,
+        MuxedAccount, Operation, OperationBody, Preconditions, PublicKey, ScAddress, ScSpecEntry,
         ScSpecFunctionV0, ScSpecTypeDef, ScVal, ScVec, SequenceNumber, SorobanAddressCredentials,
         SorobanAuthorizationEntry, SorobanCredentials, Transaction, TransactionExt, Uint256, VecM,
     },
@@ -166,7 +166,7 @@ impl Cmd {
         &self,
         contract_id: [u8; 32],
         spec_entries: &[ScSpecEntry],
-    ) -> Result<(String, Spec, ScVec), Error> {
+    ) -> Result<(String, Spec, InvokeContractArgs), Error> {
         let spec = Spec(Some(spec_entries.to_vec()));
         let mut cmd = clap::Command::new(self.contract_id.clone())
             .no_binary_name(true)
@@ -209,28 +209,27 @@ impl Cmd {
             })
             .collect::<Result<Vec<_>, Error>>()?;
 
-        // Add the contract ID and the function name to the arguments
-        let mut complete_args = vec![
-            ScVal::Address(ScAddress::Contract(Hash(contract_id))),
-            ScVal::Symbol(
-                function
-                    .try_into()
-                    .map_err(|_| Error::FunctionNameTooLong(function.clone()))?,
-            ),
-        ];
-        complete_args.extend_from_slice(parsed_args.as_slice());
-        let complete_args_len = complete_args.len();
-
-        Ok((
-            function.clone(),
-            spec,
-            complete_args
+        let contract_address_arg = ScAddress::Contract(Hash(contract_id));
+        let function_symbol_arg = function
+            .try_into()
+            .map_err(|_| Error::FunctionNameTooLong(function.clone()))?;
+
+        let final_args =
+            parsed_args
+                .clone()
                 .try_into()
                 .map_err(|_| Error::MaxNumberOfArgumentsReached {
-                    current: complete_args_len,
+                    current: parsed_args.len(),
                     maximum: ScVec::default().max_len(),
-                })?,
-        ))
+                })?;
+
+        let invoke_args = InvokeContractArgs {
+            contract_address: contract_address_arg,
+            function_name: function_symbol_arg,
+            args: final_args,
+        };
+
+        Ok((function.clone(), spec, invoke_args))
     }
 
     pub async fn run(&self) -> Result<(), Error> {
@@ -332,20 +331,20 @@ impl Cmd {
         };
         let budget = Budget::default();
         if self.unlimited_budget {
-            budget.reset_unlimited();
+            budget.reset_unlimited()?;
         };
         let h = Host::with_storage_and_budget(storage, budget);
-        h.switch_to_recording_auth();
-        h.set_source_account(source_account);
+        h.switch_to_recording_auth()?;
+        h.set_source_account(source_account)?;
 
         let mut ledger_info = state.ledger_info();
         ledger_info.sequence_number += 1;
         ledger_info.timestamp += 5;
-        h.set_ledger_info(ledger_info.clone());
+        h.set_ledger_info(ledger_info.clone())?;
 
         let (function, spec, host_function_params) =
             self.build_host_function_parameters(contract_id, &spec_entries)?;
-        h.set_diagnostic_level(DiagnosticLevel::Debug);
+        h.set_diagnostic_level(DiagnosticLevel::Debug)?;
         let resv = h
             .invoke_function(HostFunction::InvokeContract(host_function_params))
             .map_err(|host_error| {
@@ -370,7 +369,7 @@ impl Cmd {
                             address,
                             nonce,
                             signature_expiration_ledger: ledger_info.sequence_number + 1,
-                            signature_args: ScVec::default(),
+                            signature: ScVal::Void,
                         })
                     }
                     _ => SorobanCredentials::SourceAccount,
@@ -473,7 +472,7 @@ pub fn output_to_string(spec: &Spec, res: &ScVal, function: &str) -> Result<Stri
 }
 
 fn build_invoke_contract_tx(
-    parameters: ScVec,
+    parameters: InvokeContractArgs,
     sequence: i64,
     fee: u32,
     key: &ed25519_dalek::Keypair,
diff --git a/cmd/soroban-cli/src/commands/events.rs b/cmd/soroban-cli/src/commands/events.rs
index 55ed766cf..410eed7d9 100644
--- a/cmd/soroban-cli/src/commands/events.rs
+++ b/cmd/soroban-cli/src/commands/events.rs
@@ -299,6 +299,7 @@ mod tests {
 
     use assert_fs::NamedTempFile;
     use soroban_env_host::events;
+    use soroban_sdk::xdr::VecM;
 
     use super::*;
 
@@ -320,7 +321,7 @@ mod tests {
                     contract_id: Some(xdr::Hash([0; 32])),
                     type_: xdr::ContractEventType::Contract,
                     body: xdr::ContractEventBody::V0(xdr::ContractEventV0 {
-                        topics: xdr::ScVec(vec![].try_into().unwrap()),
+                        topics: VecM::default(),
                         data: xdr::ScVal::U32(12345),
                     }),
                 },
@@ -332,7 +333,7 @@ mod tests {
                     contract_id: Some(xdr::Hash([0x1; 32])),
                     type_: xdr::ContractEventType::Contract,
                     body: xdr::ContractEventBody::V0(xdr::ContractEventV0 {
-                        topics: xdr::ScVec(vec![].try_into().unwrap()),
+                        topics: VecM::default(),
                         data: xdr::ScVal::I32(67890),
                     }),
                 },
diff --git a/cmd/soroban-cli/src/commands/lab/token/wrap.rs b/cmd/soroban-cli/src/commands/lab/token/wrap.rs
index ddd002740..af2b30087 100644
--- a/cmd/soroban-cli/src/commands/lab/token/wrap.rs
+++ b/cmd/soroban-cli/src/commands/lab/token/wrap.rs
@@ -87,7 +87,7 @@ impl Cmd {
         let mut ledger_info = state.ledger_info();
         ledger_info.sequence_number += 1;
         ledger_info.timestamp += 5;
-        h.set_ledger_info(ledger_info);
+        h.set_ledger_info(ledger_info)?;
 
         let res = h.invoke_function(HostFunction::CreateContract(CreateContractArgs {
             contract_id_preimage: ContractIdPreimage::Asset(asset.clone()),
diff --git a/cmd/soroban-cli/src/rpc/mod.rs b/cmd/soroban-cli/src/rpc/mod.rs
index 5e2def4cf..b276b01e1 100644
--- a/cmd/soroban-cli/src/rpc/mod.rs
+++ b/cmd/soroban-cli/src/rpc/mod.rs
@@ -4,6 +4,7 @@ use jsonrpsee_core::params::ObjectParams;
 use jsonrpsee_core::{self, client::ClientT, rpc_params};
 use jsonrpsee_http_client::{HeaderMap, HttpClient, HttpClientBuilder};
 use serde_aux::prelude::{deserialize_default_from_null, deserialize_number_from_string};
+use soroban_env_host::xdr::DepthLimitedRead;
 use soroban_env_host::{
     budget::Budget,
     events::HostEvent,
@@ -454,8 +455,9 @@ impl Client {
             return Err(Error::NotFound("Account".to_string(), address.to_string()));
         }
         let ledger_entry = &entries[0];
+        let mut depth_limit_read = DepthLimitedRead::new(ledger_entry.xdr.as_bytes(), 100);
         if let LedgerEntryData::Account(entry) =
-            LedgerEntryData::read_xdr_base64(&mut ledger_entry.xdr.as_bytes())?
+            LedgerEntryData::read_xdr_base64(&mut depth_limit_read)?
         {
             tracing::trace!(account=?entry);
             Ok(entry)
@@ -484,8 +486,11 @@ impl Client {
             let error = error_result_xdr
                 .ok_or(Error::MissingError)
                 .and_then(|x| {
-                    TransactionResult::read_xdr_base64(&mut x.as_bytes())
-                        .map_err(|_| Error::InvalidResponse)
+                    TransactionResult::read_xdr_base64(&mut DepthLimitedRead::new(
+                        x.as_bytes(),
+                        100,
+                    ))
+                    .map_err(|_| Error::InvalidResponse)
                 })
                 .map(|r| r.result);
             tracing::error!(?error);
diff --git a/cmd/soroban-cli/src/rpc/transaction.rs b/cmd/soroban-cli/src/rpc/transaction.rs
index cd5188754..9407017d1 100644
--- a/cmd/soroban-cli/src/rpc/transaction.rs
+++ b/cmd/soroban-cli/src/rpc/transaction.rs
@@ -91,10 +91,10 @@ mod tests {
     use super::super::{Cost, SimulateHostFunctionResult};
     use soroban_env_host::xdr::{
         self, AccountId, ChangeTrustAsset, ChangeTrustOp, ExtensionPoint, Hash, HostFunction,
-        InvokeHostFunctionOp, LedgerFootprint, Memo, MuxedAccount, Operation, Preconditions,
-        PublicKey, ScAddress, ScSymbol, ScVal, ScVec, SequenceNumber,
-        SorobanAuthorizedContractFunction, SorobanAuthorizedFunction, SorobanAuthorizedInvocation,
-        SorobanResources, SorobanTransactionData, Uint256, WriteXdr,
+        InvokeContractArgs, InvokeHostFunctionOp, LedgerFootprint, Memo, MuxedAccount, Operation,
+        Preconditions, PublicKey, ScAddress, ScSymbol, ScVal, SequenceNumber,
+        SorobanAuthorizedFunction, SorobanAuthorizedInvocation, SorobanResources,
+        SorobanTransactionData, Uint256, WriteXdr,
     };
     use stellar_strkey::ed25519::PublicKey as Ed25519PublicKey;
 
@@ -126,16 +126,14 @@ mod tests {
                 )))),
                 nonce: 0,
                 signature_expiration_ledger: 0,
-                signature_args: ScVec(VecM::default()),
+                signature: ScVal::Void,
             }),
             root_invocation: SorobanAuthorizedInvocation {
-                function: SorobanAuthorizedFunction::ContractFn(
-                    SorobanAuthorizedContractFunction {
-                        contract_address: ScAddress::Contract(Hash([0; 32])),
-                        function_name: ScSymbol("fn".try_into().unwrap()),
-                        args: ScVec(VecM::default()),
-                    },
-                ),
+                function: SorobanAuthorizedFunction::ContractFn(InvokeContractArgs {
+                    contract_address: ScAddress::Contract(Hash([0; 32])),
+                    function_name: ScSymbol("fn".try_into().unwrap()),
+                    args: VecM::default(),
+                }),
                 sub_invocations: VecM::default(),
             },
         };
@@ -168,7 +166,11 @@ mod tests {
             operations: vec![Operation {
                 source_account: None,
                 body: OperationBody::InvokeHostFunction(InvokeHostFunctionOp {
-                    host_function: HostFunction::InvokeContract(ScVec(VecM::default())),
+                    host_function: HostFunction::InvokeContract(InvokeContractArgs {
+                        contract_address: ScAddress::Contract(Hash([0x0; 32])),
+                        function_name: ScSymbol::default(),
+                        args: VecM::default(),
+                    }),
                     auth: VecM::default(),
                 }),
             }]
@@ -210,7 +212,7 @@ mod tests {
         assert_eq!(1, op.auth.len());
         let auth = &op.auth[0];
 
-        let xdr::SorobanAuthorizedFunction::ContractFn(xdr::SorobanAuthorizedContractFunction{ ref function_name, .. }) = auth.root_invocation.function else {
+        let xdr::SorobanAuthorizedFunction::ContractFn(InvokeContractArgs{ ref function_name, .. }) = auth.root_invocation.function else {
             panic!("unexpected function type");
         };
         assert_eq!("fn".to_string(), format!("{}", function_name.0));
diff --git a/cmd/soroban-cli/src/utils/contract_spec.rs b/cmd/soroban-cli/src/utils/contract_spec.rs
index d2be0ed27..b19197df0 100644
--- a/cmd/soroban-cli/src/utils/contract_spec.rs
+++ b/cmd/soroban-cli/src/utils/contract_spec.rs
@@ -4,8 +4,9 @@ use std::{
 };
 
 use soroban_env_host::xdr::{
-    self, ReadXdr, ScEnvMetaEntry, ScMetaEntry, ScMetaV0, ScSpecEntry, ScSpecFunctionV0,
-    ScSpecUdtEnumV0, ScSpecUdtErrorEnumV0, ScSpecUdtStructV0, ScSpecUdtUnionV0, StringM,
+    self, DepthLimitedRead, ReadXdr, ScEnvMetaEntry, ScMetaEntry, ScMetaV0, ScSpecEntry,
+    ScSpecFunctionV0, ScSpecUdtEnumV0, ScSpecUdtErrorEnumV0, ScSpecUdtStructV0, ScSpecUdtUnionV0,
+    StringM,
 };
 
 pub struct ContractSpec {
@@ -57,8 +58,10 @@ impl ContractSpec {
         let mut env_meta_base64 = None;
         let env_meta = if let Some(env_meta) = env_meta {
             env_meta_base64 = Some(base64::encode(env_meta));
-            let mut cursor = Cursor::new(env_meta);
-            ScEnvMetaEntry::read_xdr_iter(&mut cursor).collect::<Result<Vec<_>, xdr::Error>>()?
+            let cursor = Cursor::new(env_meta);
+            let mut depth_limit_read = DepthLimitedRead::new(cursor, 100);
+            ScEnvMetaEntry::read_xdr_iter(&mut depth_limit_read)
+                .collect::<Result<Vec<_>, xdr::Error>>()?
         } else {
             vec![]
         };
@@ -66,8 +69,10 @@ impl ContractSpec {
         let mut meta_base64 = None;
         let meta = if let Some(meta) = meta {
             meta_base64 = Some(base64::encode(meta));
-            let mut cursor = Cursor::new(meta);
-            ScMetaEntry::read_xdr_iter(&mut cursor).collect::<Result<Vec<_>, xdr::Error>>()?
+            let cursor = Cursor::new(meta);
+            let mut depth_limit_read = DepthLimitedRead::new(cursor, 100);
+            ScMetaEntry::read_xdr_iter(&mut depth_limit_read)
+                .collect::<Result<Vec<_>, xdr::Error>>()?
         } else {
             vec![]
         };
@@ -75,8 +80,10 @@ impl ContractSpec {
         let mut spec_base64 = None;
         let spec = if let Some(spec) = spec {
             spec_base64 = Some(base64::encode(spec));
-            let mut cursor = Cursor::new(spec);
-            ScSpecEntry::read_xdr_iter(&mut cursor).collect::<Result<Vec<_>, xdr::Error>>()?
+            let cursor = Cursor::new(spec);
+            let mut depth_limit_read = DepthLimitedRead::new(cursor, 100);
+            ScSpecEntry::read_xdr_iter(&mut depth_limit_read)
+                .collect::<Result<Vec<_>, xdr::Error>>()?
         } else {
             vec![]
         };
diff --git a/docs/soroban-cli-full-docs.md b/docs/soroban-cli-full-docs.md
index 8387add31..df91f0843 100644
--- a/docs/soroban-cli-full-docs.md
+++ b/docs/soroban-cli-full-docs.md
@@ -769,7 +769,7 @@ Decode XDR
 
 * `--type <TYPE>` — XDR type to decode to
 
-  Possible values: `Value`, `ScpBallot`, `ScpStatementType`, `ScpNomination`, `ScpStatement`, `ScpStatementPledges`, `ScpStatementPrepare`, `ScpStatementConfirm`, `ScpStatementExternalize`, `ScpEnvelope`, `ScpQuorumSet`, `ConfigSettingContractExecutionLanesV0`, `ConfigSettingContractComputeV0`, `ConfigSettingContractLedgerCostV0`, `ConfigSettingContractHistoricalDataV0`, `ConfigSettingContractMetaDataV0`, `ConfigSettingContractBandwidthV0`, `ContractCostType`, `ContractCostParamEntry`, `StateExpirationSettings`, `ContractCostParams`, `ConfigSettingId`, `ConfigSettingEntry`, `ScEnvMetaKind`, `ScEnvMetaEntry`, `ScMetaV0`, `ScMetaKind`, `ScMetaEntry`, `ScSpecType`, `ScSpecTypeOption`, `ScSpecTypeResult`, `ScSpecTypeVec`, `ScSpecTypeMap`, `ScSpecTypeSet`, `ScSpecTypeTuple`, `ScSpecTypeBytesN`, `ScSpecTypeUdt`, `ScSpecTypeDef`, `ScSpecUdtStructFieldV0`, `ScSpecUdtStructV0`, `ScSpecUdtUnionCaseVoidV0`, `ScSpecUdtUnionCaseTupleV0`, `ScSpecUdtUnionCaseV0Kind`, `ScSpecUdtUnionCaseV0`, `ScSpecUdtUnionV0`, `ScSpecUdtEnumCaseV0`, `ScSpecUdtEnumV0`, `ScSpecUdtErrorEnumCaseV0`, `ScSpecUdtErrorEnumV0`, `ScSpecFunctionInputV0`, `ScSpecFunctionV0`, `ScSpecEntryKind`, `ScSpecEntry`, `ScValType`, `ScErrorType`, `ScErrorCode`, `ScError`, `UInt128Parts`, `Int128Parts`, `UInt256Parts`, `Int256Parts`, `ContractExecutableType`, `ContractExecutable`, `ScAddressType`, `ScAddress`, `ScVec`, `ScMap`, `ScBytes`, `ScString`, `ScSymbol`, `ScNonceKey`, `ScContractInstance`, `ScVal`, `ScMapEntry`, `StoredTransactionSet`, `PersistedScpStateV0`, `PersistedScpStateV1`, `PersistedScpState`, `Thresholds`, `String32`, `String64`, `SequenceNumber`, `DataValue`, `PoolId`, `AssetCode4`, `AssetCode12`, `AssetType`, `AssetCode`, `AlphaNum4`, `AlphaNum12`, `Asset`, `Price`, `Liabilities`, `ThresholdIndexes`, `LedgerEntryType`, `Signer`, `AccountFlags`, `SponsorshipDescriptor`, `AccountEntryExtensionV3`, `AccountEntryExtensionV2`, `AccountEntryExtensionV2Ext`, `AccountEntryExtensionV1`, `AccountEntryExtensionV1Ext`, `AccountEntry`, `AccountEntryExt`, `TrustLineFlags`, `LiquidityPoolType`, `TrustLineAsset`, `TrustLineEntryExtensionV2`, `TrustLineEntryExtensionV2Ext`, `TrustLineEntry`, `TrustLineEntryExt`, `TrustLineEntryV1`, `TrustLineEntryV1Ext`, `OfferEntryFlags`, `OfferEntry`, `OfferEntryExt`, `DataEntry`, `DataEntryExt`, `ClaimPredicateType`, `ClaimPredicate`, `ClaimantType`, `Claimant`, `ClaimantV0`, `ClaimableBalanceIdType`, `ClaimableBalanceId`, `ClaimableBalanceFlags`, `ClaimableBalanceEntryExtensionV1`, `ClaimableBalanceEntryExtensionV1Ext`, `ClaimableBalanceEntry`, `ClaimableBalanceEntryExt`, `LiquidityPoolConstantProductParameters`, `LiquidityPoolEntry`, `LiquidityPoolEntryBody`, `LiquidityPoolEntryConstantProduct`, `ContractEntryBodyType`, `ContractDataFlags`, `ContractDataDurability`, `ContractDataEntry`, `ContractDataEntryBody`, `ContractDataEntryData`, `ContractCodeEntry`, `ContractCodeEntryBody`, `LedgerEntryExtensionV1`, `LedgerEntryExtensionV1Ext`, `LedgerEntry`, `LedgerEntryData`, `LedgerEntryExt`, `LedgerKey`, `LedgerKeyAccount`, `LedgerKeyTrustLine`, `LedgerKeyOffer`, `LedgerKeyData`, `LedgerKeyClaimableBalance`, `LedgerKeyLiquidityPool`, `LedgerKeyContractData`, `LedgerKeyContractCode`, `LedgerKeyConfigSetting`, `EnvelopeType`, `UpgradeType`, `StellarValueType`, `LedgerCloseValueSignature`, `StellarValue`, `StellarValueExt`, `LedgerHeaderFlags`, `LedgerHeaderExtensionV1`, `LedgerHeaderExtensionV1Ext`, `LedgerHeader`, `LedgerHeaderExt`, `LedgerUpgradeType`, `ConfigUpgradeSetKey`, `LedgerUpgrade`, `ConfigUpgradeSet`, `BucketEntryType`, `BucketMetadata`, `BucketMetadataExt`, `BucketEntry`, `TxSetComponentType`, `TxSetComponent`, `TxSetComponentTxsMaybeDiscountedFee`, `TransactionPhase`, `TransactionSet`, `TransactionSetV1`, `GeneralizedTransactionSet`, `TransactionResultPair`, `TransactionResultSet`, `TransactionHistoryEntry`, `TransactionHistoryEntryExt`, `TransactionHistoryResultEntry`, `TransactionHistoryResultEntryExt`, `LedgerHeaderHistoryEntry`, `LedgerHeaderHistoryEntryExt`, `LedgerScpMessages`, `ScpHistoryEntryV0`, `ScpHistoryEntry`, `LedgerEntryChangeType`, `LedgerEntryChange`, `LedgerEntryChanges`, `OperationMeta`, `TransactionMetaV1`, `TransactionMetaV2`, `ContractEventType`, `ContractEvent`, `ContractEventBody`, `ContractEventV0`, `DiagnosticEvent`, `SorobanTransactionMeta`, `TransactionMetaV3`, `InvokeHostFunctionSuccessPreImage`, `TransactionMeta`, `TransactionResultMeta`, `UpgradeEntryMeta`, `LedgerCloseMetaV0`, `LedgerCloseMetaV1`, `LedgerCloseMetaV2`, `LedgerCloseMeta`, `ErrorCode`, `SError`, `SendMore`, `SendMoreExtended`, `AuthCert`, `Hello`, `Auth`, `IpAddrType`, `PeerAddress`, `PeerAddressIp`, `MessageType`, `DontHave`, `SurveyMessageCommandType`, `SurveyMessageResponseType`, `SurveyRequestMessage`, `SignedSurveyRequestMessage`, `EncryptedBody`, `SurveyResponseMessage`, `SignedSurveyResponseMessage`, `PeerStats`, `PeerStatList`, `TopologyResponseBodyV0`, `TopologyResponseBodyV1`, `SurveyResponseBody`, `TxAdvertVector`, `FloodAdvert`, `TxDemandVector`, `FloodDemand`, `StellarMessage`, `AuthenticatedMessage`, `AuthenticatedMessageV0`, `LiquidityPoolParameters`, `MuxedAccount`, `MuxedAccountMed25519`, `DecoratedSignature`, `OperationType`, `CreateAccountOp`, `PaymentOp`, `PathPaymentStrictReceiveOp`, `PathPaymentStrictSendOp`, `ManageSellOfferOp`, `ManageBuyOfferOp`, `CreatePassiveSellOfferOp`, `SetOptionsOp`, `ChangeTrustAsset`, `ChangeTrustOp`, `AllowTrustOp`, `ManageDataOp`, `BumpSequenceOp`, `CreateClaimableBalanceOp`, `ClaimClaimableBalanceOp`, `BeginSponsoringFutureReservesOp`, `RevokeSponsorshipType`, `RevokeSponsorshipOp`, `RevokeSponsorshipOpSigner`, `ClawbackOp`, `ClawbackClaimableBalanceOp`, `SetTrustLineFlagsOp`, `LiquidityPoolDepositOp`, `LiquidityPoolWithdrawOp`, `HostFunctionType`, `ContractIdPreimageType`, `ContractIdPreimage`, `ContractIdPreimageFromAddress`, `CreateContractArgs`, `HostFunction`, `SorobanAuthorizedFunctionType`, `SorobanAuthorizedContractFunction`, `SorobanAuthorizedFunction`, `SorobanAuthorizedInvocation`, `SorobanAddressCredentials`, `SorobanCredentialsType`, `SorobanCredentials`, `SorobanAuthorizationEntry`, `InvokeHostFunctionOp`, `BumpFootprintExpirationOp`, `RestoreFootprintOp`, `Operation`, `OperationBody`, `HashIdPreimage`, `HashIdPreimageOperationId`, `HashIdPreimageRevokeId`, `HashIdPreimageContractId`, `HashIdPreimageSorobanAuthorization`, `MemoType`, `Memo`, `TimeBounds`, `LedgerBounds`, `PreconditionsV2`, `PreconditionType`, `Preconditions`, `LedgerFootprint`, `SorobanResources`, `SorobanTransactionData`, `TransactionV0`, `TransactionV0Ext`, `TransactionV0Envelope`, `Transaction`, `TransactionExt`, `TransactionV1Envelope`, `FeeBumpTransaction`, `FeeBumpTransactionInnerTx`, `FeeBumpTransactionExt`, `FeeBumpTransactionEnvelope`, `TransactionEnvelope`, `TransactionSignaturePayload`, `TransactionSignaturePayloadTaggedTransaction`, `ClaimAtomType`, `ClaimOfferAtomV0`, `ClaimOfferAtom`, `ClaimLiquidityAtom`, `ClaimAtom`, `CreateAccountResultCode`, `CreateAccountResult`, `PaymentResultCode`, `PaymentResult`, `PathPaymentStrictReceiveResultCode`, `SimplePaymentResult`, `PathPaymentStrictReceiveResult`, `PathPaymentStrictReceiveResultSuccess`, `PathPaymentStrictSendResultCode`, `PathPaymentStrictSendResult`, `PathPaymentStrictSendResultSuccess`, `ManageSellOfferResultCode`, `ManageOfferEffect`, `ManageOfferSuccessResult`, `ManageOfferSuccessResultOffer`, `ManageSellOfferResult`, `ManageBuyOfferResultCode`, `ManageBuyOfferResult`, `SetOptionsResultCode`, `SetOptionsResult`, `ChangeTrustResultCode`, `ChangeTrustResult`, `AllowTrustResultCode`, `AllowTrustResult`, `AccountMergeResultCode`, `AccountMergeResult`, `InflationResultCode`, `InflationPayout`, `InflationResult`, `ManageDataResultCode`, `ManageDataResult`, `BumpSequenceResultCode`, `BumpSequenceResult`, `CreateClaimableBalanceResultCode`, `CreateClaimableBalanceResult`, `ClaimClaimableBalanceResultCode`, `ClaimClaimableBalanceResult`, `BeginSponsoringFutureReservesResultCode`, `BeginSponsoringFutureReservesResult`, `EndSponsoringFutureReservesResultCode`, `EndSponsoringFutureReservesResult`, `RevokeSponsorshipResultCode`, `RevokeSponsorshipResult`, `ClawbackResultCode`, `ClawbackResult`, `ClawbackClaimableBalanceResultCode`, `ClawbackClaimableBalanceResult`, `SetTrustLineFlagsResultCode`, `SetTrustLineFlagsResult`, `LiquidityPoolDepositResultCode`, `LiquidityPoolDepositResult`, `LiquidityPoolWithdrawResultCode`, `LiquidityPoolWithdrawResult`, `InvokeHostFunctionResultCode`, `InvokeHostFunctionResult`, `BumpFootprintExpirationResultCode`, `BumpFootprintExpirationResult`, `RestoreFootprintResultCode`, `RestoreFootprintResult`, `OperationResultCode`, `OperationResult`, `OperationResultTr`, `TransactionResultCode`, `InnerTransactionResult`, `InnerTransactionResultResult`, `InnerTransactionResultExt`, `InnerTransactionResultPair`, `TransactionResult`, `TransactionResultResult`, `TransactionResultExt`, `Hash`, `Uint256`, `Uint32`, `Int32`, `Uint64`, `Int64`, `TimePoint`, `Duration`, `ExtensionPoint`, `CryptoKeyType`, `PublicKeyType`, `SignerKeyType`, `PublicKey`, `SignerKey`, `SignerKeyEd25519SignedPayload`, `Signature`, `SignatureHint`, `NodeId`, `AccountId`, `Curve25519Secret`, `Curve25519Public`, `HmacSha256Key`, `HmacSha256Mac`
+  Possible values: `Value`, `ScpBallot`, `ScpStatementType`, `ScpNomination`, `ScpStatement`, `ScpStatementPledges`, `ScpStatementPrepare`, `ScpStatementConfirm`, `ScpStatementExternalize`, `ScpEnvelope`, `ScpQuorumSet`, `ConfigSettingContractExecutionLanesV0`, `ConfigSettingContractComputeV0`, `ConfigSettingContractLedgerCostV0`, `ConfigSettingContractHistoricalDataV0`, `ConfigSettingContractMetaDataV0`, `ConfigSettingContractBandwidthV0`, `ContractCostType`, `ContractCostParamEntry`, `StateExpirationSettings`, `ContractCostParams`, `ConfigSettingId`, `ConfigSettingEntry`, `ScEnvMetaKind`, `ScEnvMetaEntry`, `ScMetaV0`, `ScMetaKind`, `ScMetaEntry`, `ScSpecType`, `ScSpecTypeOption`, `ScSpecTypeResult`, `ScSpecTypeVec`, `ScSpecTypeMap`, `ScSpecTypeSet`, `ScSpecTypeTuple`, `ScSpecTypeBytesN`, `ScSpecTypeUdt`, `ScSpecTypeDef`, `ScSpecUdtStructFieldV0`, `ScSpecUdtStructV0`, `ScSpecUdtUnionCaseVoidV0`, `ScSpecUdtUnionCaseTupleV0`, `ScSpecUdtUnionCaseV0Kind`, `ScSpecUdtUnionCaseV0`, `ScSpecUdtUnionV0`, `ScSpecUdtEnumCaseV0`, `ScSpecUdtEnumV0`, `ScSpecUdtErrorEnumCaseV0`, `ScSpecUdtErrorEnumV0`, `ScSpecFunctionInputV0`, `ScSpecFunctionV0`, `ScSpecEntryKind`, `ScSpecEntry`, `ScValType`, `ScErrorType`, `ScErrorCode`, `ScError`, `UInt128Parts`, `Int128Parts`, `UInt256Parts`, `Int256Parts`, `ContractExecutableType`, `ContractExecutable`, `ScAddressType`, `ScAddress`, `ScVec`, `ScMap`, `ScBytes`, `ScString`, `ScSymbol`, `ScNonceKey`, `ScContractInstance`, `ScVal`, `ScMapEntry`, `StoredTransactionSet`, `PersistedScpStateV0`, `PersistedScpStateV1`, `PersistedScpState`, `Thresholds`, `String32`, `String64`, `SequenceNumber`, `DataValue`, `PoolId`, `AssetCode4`, `AssetCode12`, `AssetType`, `AssetCode`, `AlphaNum4`, `AlphaNum12`, `Asset`, `Price`, `Liabilities`, `ThresholdIndexes`, `LedgerEntryType`, `Signer`, `AccountFlags`, `SponsorshipDescriptor`, `AccountEntryExtensionV3`, `AccountEntryExtensionV2`, `AccountEntryExtensionV2Ext`, `AccountEntryExtensionV1`, `AccountEntryExtensionV1Ext`, `AccountEntry`, `AccountEntryExt`, `TrustLineFlags`, `LiquidityPoolType`, `TrustLineAsset`, `TrustLineEntryExtensionV2`, `TrustLineEntryExtensionV2Ext`, `TrustLineEntry`, `TrustLineEntryExt`, `TrustLineEntryV1`, `TrustLineEntryV1Ext`, `OfferEntryFlags`, `OfferEntry`, `OfferEntryExt`, `DataEntry`, `DataEntryExt`, `ClaimPredicateType`, `ClaimPredicate`, `ClaimantType`, `Claimant`, `ClaimantV0`, `ClaimableBalanceIdType`, `ClaimableBalanceId`, `ClaimableBalanceFlags`, `ClaimableBalanceEntryExtensionV1`, `ClaimableBalanceEntryExtensionV1Ext`, `ClaimableBalanceEntry`, `ClaimableBalanceEntryExt`, `LiquidityPoolConstantProductParameters`, `LiquidityPoolEntry`, `LiquidityPoolEntryBody`, `LiquidityPoolEntryConstantProduct`, `ContractEntryBodyType`, `ContractDataFlags`, `ContractDataDurability`, `ContractDataEntry`, `ContractDataEntryBody`, `ContractDataEntryData`, `ContractCodeEntry`, `ContractCodeEntryBody`, `LedgerEntryExtensionV1`, `LedgerEntryExtensionV1Ext`, `LedgerEntry`, `LedgerEntryData`, `LedgerEntryExt`, `LedgerKey`, `LedgerKeyAccount`, `LedgerKeyTrustLine`, `LedgerKeyOffer`, `LedgerKeyData`, `LedgerKeyClaimableBalance`, `LedgerKeyLiquidityPool`, `LedgerKeyContractData`, `LedgerKeyContractCode`, `LedgerKeyConfigSetting`, `EnvelopeType`, `UpgradeType`, `StellarValueType`, `LedgerCloseValueSignature`, `StellarValue`, `StellarValueExt`, `LedgerHeaderFlags`, `LedgerHeaderExtensionV1`, `LedgerHeaderExtensionV1Ext`, `LedgerHeader`, `LedgerHeaderExt`, `LedgerUpgradeType`, `ConfigUpgradeSetKey`, `LedgerUpgrade`, `ConfigUpgradeSet`, `BucketEntryType`, `BucketMetadata`, `BucketMetadataExt`, `BucketEntry`, `TxSetComponentType`, `TxSetComponent`, `TxSetComponentTxsMaybeDiscountedFee`, `TransactionPhase`, `TransactionSet`, `TransactionSetV1`, `GeneralizedTransactionSet`, `TransactionResultPair`, `TransactionResultSet`, `TransactionHistoryEntry`, `TransactionHistoryEntryExt`, `TransactionHistoryResultEntry`, `TransactionHistoryResultEntryExt`, `LedgerHeaderHistoryEntry`, `LedgerHeaderHistoryEntryExt`, `LedgerScpMessages`, `ScpHistoryEntryV0`, `ScpHistoryEntry`, `LedgerEntryChangeType`, `LedgerEntryChange`, `LedgerEntryChanges`, `OperationMeta`, `TransactionMetaV1`, `TransactionMetaV2`, `ContractEventType`, `ContractEvent`, `ContractEventBody`, `ContractEventV0`, `DiagnosticEvent`, `SorobanTransactionMeta`, `TransactionMetaV3`, `InvokeHostFunctionSuccessPreImage`, `TransactionMeta`, `TransactionResultMeta`, `UpgradeEntryMeta`, `LedgerCloseMetaV0`, `LedgerCloseMetaV1`, `LedgerCloseMetaV2`, `LedgerCloseMeta`, `ErrorCode`, `SError`, `SendMore`, `SendMoreExtended`, `AuthCert`, `Hello`, `Auth`, `IpAddrType`, `PeerAddress`, `PeerAddressIp`, `MessageType`, `DontHave`, `SurveyMessageCommandType`, `SurveyMessageResponseType`, `SurveyRequestMessage`, `SignedSurveyRequestMessage`, `EncryptedBody`, `SurveyResponseMessage`, `SignedSurveyResponseMessage`, `PeerStats`, `PeerStatList`, `TopologyResponseBodyV0`, `TopologyResponseBodyV1`, `SurveyResponseBody`, `TxAdvertVector`, `FloodAdvert`, `TxDemandVector`, `FloodDemand`, `StellarMessage`, `AuthenticatedMessage`, `AuthenticatedMessageV0`, `LiquidityPoolParameters`, `MuxedAccount`, `MuxedAccountMed25519`, `DecoratedSignature`, `OperationType`, `CreateAccountOp`, `PaymentOp`, `PathPaymentStrictReceiveOp`, `PathPaymentStrictSendOp`, `ManageSellOfferOp`, `ManageBuyOfferOp`, `CreatePassiveSellOfferOp`, `SetOptionsOp`, `ChangeTrustAsset`, `ChangeTrustOp`, `AllowTrustOp`, `ManageDataOp`, `BumpSequenceOp`, `CreateClaimableBalanceOp`, `ClaimClaimableBalanceOp`, `BeginSponsoringFutureReservesOp`, `RevokeSponsorshipType`, `RevokeSponsorshipOp`, `RevokeSponsorshipOpSigner`, `ClawbackOp`, `ClawbackClaimableBalanceOp`, `SetTrustLineFlagsOp`, `LiquidityPoolDepositOp`, `LiquidityPoolWithdrawOp`, `HostFunctionType`, `ContractIdPreimageType`, `ContractIdPreimage`, `ContractIdPreimageFromAddress`, `CreateContractArgs`, `InvokeContractArgs`, `HostFunction`, `SorobanAuthorizedFunctionType`, `SorobanAuthorizedFunction`, `SorobanAuthorizedInvocation`, `SorobanAddressCredentials`, `SorobanCredentialsType`, `SorobanCredentials`, `SorobanAuthorizationEntry`, `InvokeHostFunctionOp`, `BumpFootprintExpirationOp`, `RestoreFootprintOp`, `Operation`, `OperationBody`, `HashIdPreimage`, `HashIdPreimageOperationId`, `HashIdPreimageRevokeId`, `HashIdPreimageContractId`, `HashIdPreimageSorobanAuthorization`, `MemoType`, `Memo`, `TimeBounds`, `LedgerBounds`, `PreconditionsV2`, `PreconditionType`, `Preconditions`, `LedgerFootprint`, `SorobanResources`, `SorobanTransactionData`, `TransactionV0`, `TransactionV0Ext`, `TransactionV0Envelope`, `Transaction`, `TransactionExt`, `TransactionV1Envelope`, `FeeBumpTransaction`, `FeeBumpTransactionInnerTx`, `FeeBumpTransactionExt`, `FeeBumpTransactionEnvelope`, `TransactionEnvelope`, `TransactionSignaturePayload`, `TransactionSignaturePayloadTaggedTransaction`, `ClaimAtomType`, `ClaimOfferAtomV0`, `ClaimOfferAtom`, `ClaimLiquidityAtom`, `ClaimAtom`, `CreateAccountResultCode`, `CreateAccountResult`, `PaymentResultCode`, `PaymentResult`, `PathPaymentStrictReceiveResultCode`, `SimplePaymentResult`, `PathPaymentStrictReceiveResult`, `PathPaymentStrictReceiveResultSuccess`, `PathPaymentStrictSendResultCode`, `PathPaymentStrictSendResult`, `PathPaymentStrictSendResultSuccess`, `ManageSellOfferResultCode`, `ManageOfferEffect`, `ManageOfferSuccessResult`, `ManageOfferSuccessResultOffer`, `ManageSellOfferResult`, `ManageBuyOfferResultCode`, `ManageBuyOfferResult`, `SetOptionsResultCode`, `SetOptionsResult`, `ChangeTrustResultCode`, `ChangeTrustResult`, `AllowTrustResultCode`, `AllowTrustResult`, `AccountMergeResultCode`, `AccountMergeResult`, `InflationResultCode`, `InflationPayout`, `InflationResult`, `ManageDataResultCode`, `ManageDataResult`, `BumpSequenceResultCode`, `BumpSequenceResult`, `CreateClaimableBalanceResultCode`, `CreateClaimableBalanceResult`, `ClaimClaimableBalanceResultCode`, `ClaimClaimableBalanceResult`, `BeginSponsoringFutureReservesResultCode`, `BeginSponsoringFutureReservesResult`, `EndSponsoringFutureReservesResultCode`, `EndSponsoringFutureReservesResult`, `RevokeSponsorshipResultCode`, `RevokeSponsorshipResult`, `ClawbackResultCode`, `ClawbackResult`, `ClawbackClaimableBalanceResultCode`, `ClawbackClaimableBalanceResult`, `SetTrustLineFlagsResultCode`, `SetTrustLineFlagsResult`, `LiquidityPoolDepositResultCode`, `LiquidityPoolDepositResult`, `LiquidityPoolWithdrawResultCode`, `LiquidityPoolWithdrawResult`, `InvokeHostFunctionResultCode`, `InvokeHostFunctionResult`, `BumpFootprintExpirationResultCode`, `BumpFootprintExpirationResult`, `RestoreFootprintResultCode`, `RestoreFootprintResult`, `OperationResultCode`, `OperationResult`, `OperationResultTr`, `TransactionResultCode`, `InnerTransactionResult`, `InnerTransactionResultResult`, `InnerTransactionResultExt`, `InnerTransactionResultPair`, `TransactionResult`, `TransactionResultResult`, `TransactionResultExt`, `Hash`, `Uint256`, `Uint32`, `Int32`, `Uint64`, `Int64`, `TimePoint`, `Duration`, `ExtensionPoint`, `CryptoKeyType`, `PublicKeyType`, `SignerKeyType`, `PublicKey`, `SignerKey`, `SignerKeyEd25519SignedPayload`, `Signature`, `SignatureHint`, `NodeId`, `AccountId`, `Curve25519Secret`, `Curve25519Public`, `HmacSha256Key`, `HmacSha256Mac`
 
 * `--xdr <XDR>` — XDR (base64 encoded) to decode
 * `--output <OUTPUT>` — Type of output