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api/docs/api-observable/classes/_index_.api.md
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# Hierarchy
↳ [ApiCombined](_combined_.apicombined.md)
**↳ Api**
# Constructors
<a id="constructor"></a>
## constructor
⊕ **new Api**(api: *`RxApiInterface`*): [Api](_index_.api.md)
*Inherited from [ApiBase](_base_.apibase.md).[constructor](_base_.apibase.md#constructor)*
*Defined in [Base.ts:32](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L32)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| api | `RxApiInterface` |
**Returns:** [Api](_index_.api.md)
___
# Properties
<a id="_api"></a>
## `<Protected>` _api
**● _api**: *`RxApiInterface`*
*Inherited from [ApiBase](_base_.apibase.md).[_api](_base_.apibase.md#_api)*
*Defined in [Base.ts:28](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L28)*
___
<a id="_genesishash"></a>
## `<Protected>` _genesisHash
**● _genesisHash**: *`Hash`*
*Inherited from [ApiBase](_base_.apibase.md).[_genesisHash](_base_.apibase.md#_genesishash)*
*Defined in [Base.ts:29](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L29)*
___
<a id="whenready"></a>
## whenReady
**● whenReady**: *`Observable`<`boolean`>*
*Inherited from [ApiBase](_base_.apibase.md).[whenReady](_base_.apibase.md#whenready)*
*Defined in [Base.ts:32](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L32)*
___
<a id="extrinsics"></a>
## `<Static>` extrinsics
**● extrinsics**: *`Extrinsics`* = extrinsicsStatic
*Inherited from [ApiBase](_base_.apibase.md).[extrinsics](_base_.apibase.md#extrinsics)*
*Defined in [Base.ts:40](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L40)*
___
<a id="storage"></a>
## `<Static>` storage
**● storage**: *`Storage`* = storageStatic
*Inherited from [ApiBase](_base_.apibase.md).[storage](_base_.apibase.md#storage)*
*Defined in [Base.ts:41](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L41)*
___
# Accessors
<a id="genesishash"></a>
## genesisHash
getgenesisHash(): `Hash`
*Inherited from [ApiBase](_base_.apibase.md).[genesisHash](_base_.apibase.md#genesishash)*
*Defined in [Base.ts:78](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L78)*
**Returns:** `Hash`
___
# Methods
<a id="accountnonce"></a>
## accountNonce
▸ **accountNonce**(address: * `AccountId` &#124; `string`*): `Observable`< `Index` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[accountNonce](_queries_.apiqueries.md#accountnonce)*
*Defined in [Queries.ts:19](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L19)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| address | `AccountId` &#124; `string`|
**Returns:** `Observable`< `Index` &#124; `undefined`>
___
<a id="balancefree"></a>
## balanceFree
▸ **balanceFree**(address: * `AccountId` &#124; `string`*): `Observable`< `Balance` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[balanceFree](_queries_.apiqueries.md#balancefree)*
*Defined in [Queries.ts:23](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L23)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| address | `AccountId` &#124; `string`|
**Returns:** `Observable`< `Balance` &#124; `undefined`>
___
<a id="balancereserved"></a>
## balanceReserved
▸ **balanceReserved**(address: * `AccountId` &#124; `string`*): `Observable`< `Balance` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[balanceReserved](_queries_.apiqueries.md#balancereserved)*
*Defined in [Queries.ts:27](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L27)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| address | `AccountId` &#124; `string`|
**Returns:** `Observable`< `Balance` &#124; `undefined`>
___
<a id="bestnumber"></a>
## bestNumber
▸ **bestNumber**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiCalls](_calls_.apicalls.md).[bestNumber](_calls_.apicalls.md#bestnumber)*
*Defined in [Calls.ts:13](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Calls.ts#L13)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="blocknow"></a>
## blockNow
▸ **blockNow**(): `Observable`< `Moment` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[blockNow](_queries_.apiqueries.md#blocknow)*
*Defined in [Queries.ts:35](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L35)*
**Returns:** `Observable`< `Moment` &#124; `undefined`>
___
<a id="blockperiod"></a>
## blockPeriod
▸ **blockPeriod**(): `Observable`< `Moment` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[blockPeriod](_queries_.apiqueries.md#blockperiod)*
*Defined in [Queries.ts:31](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L31)*
**Returns:** `Observable`< `Moment` &#124; `undefined`>
___
<a id="chain"></a>
## chain
▸ **chain**(): `Observable`< `Text` &#124; `undefined`>
*Inherited from [ApiCalls](_calls_.apicalls.md).[chain](_calls_.apicalls.md#chain)*
*Defined in [Calls.ts:25](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Calls.ts#L25)*
**Returns:** `Observable`< `Text` &#124; `undefined`>
___
<a id="combine"></a>
## `<Protected>` combine
▸ **combine**<`T`,`R`>(observables: *`Array`<`Observable`<`any`>>*, mapfn?: *`MapFn`<`R`, `T`>*): `Observable`<`T`>
*Inherited from [ApiBase](_base_.apibase.md).[combine](_base_.apibase.md#combine)*
*Defined in [Base.ts:71](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L71)*
**Type parameters:**
#### T
#### R
**Parameters:**
| Param | Type | Default value |
| ------ | ------ | ------ |
| observables | `Array`<`Observable`<`any`>> | - |
| `Default value` mapfn | `MapFn`<`R`, `T`> | defaultMapFn |
**Returns:** `Observable`<`T`>
___
<a id="democracylaunchperiod"></a>
## democracyLaunchPeriod
▸ **democracyLaunchPeriod**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[democracyLaunchPeriod](_queries_.apiqueries.md#democracylaunchperiod)*
*Defined in [Queries.ts:39](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L39)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="democracynexttally"></a>
## democracyNextTally
▸ **democracyNextTally**(): `Observable`< `ReferendumIndex` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[democracyNextTally](_queries_.apiqueries.md#democracynexttally)*
*Defined in [Queries.ts:43](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L43)*
**Returns:** `Observable`< `ReferendumIndex` &#124; `undefined`>
___
<a id="democracyreferendumvoters"></a>
## democracyReferendumVoters
▸ **democracyReferendumVoters**(referendumId: * `ReferendumIndex` &#124; `BN` &#124; `number`*): `Observable`<`Array`<[RxReferendumVote](../modules/_types_d_.md#rxreferendumvote)>>
*Inherited from [ApiCombined](_combined_.apicombined.md).[democracyReferendumVoters](_combined_.apicombined.md#democracyreferendumvoters)*
*Defined in [Combined.ts:42](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L42)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| referendumId | `ReferendumIndex` &#124; `BN` &#124; `number`|
**Returns:** `Observable`<`Array`<[RxReferendumVote](../modules/_types_d_.md#rxreferendumvote)>>
___
<a id="democracyvotersbalancesof"></a>
## democracyVotersBalancesOf
▸ **democracyVotersBalancesOf**(referendumId: * `ReferendumIndex` &#124; `BN` &#124; `number`*): `Observable`<`Array`<`Balance`>>
*Inherited from [ApiCombined](_combined_.apicombined.md).[democracyVotersBalancesOf](_combined_.apicombined.md#democracyvotersbalancesof)*
*Defined in [Combined.ts:87](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L87)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| referendumId | `ReferendumIndex` &#124; `BN` &#124; `number`|
**Returns:** `Observable`<`Array`<`Balance`>>
___
<a id="democracyvotersvotesof"></a>
## democracyVotersVotesOf
▸ **democracyVotersVotesOf**(referendumId: * `ReferendumIndex` &#124; `BN` &#124; `number`*): `Observable`<`Array`<`Bool`>>
*Inherited from [ApiCombined](_combined_.apicombined.md).[democracyVotersVotesOf](_combined_.apicombined.md#democracyvotersvotesof)*
*Defined in [Combined.ts:103](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L103)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| referendumId | `ReferendumIndex` &#124; `BN` &#124; `number`|
**Returns:** `Observable`<`Array`<`Bool`>>
___
<a id="democracyvotingperiod"></a>
## democracyVotingPeriod
▸ **democracyVotingPeriod**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[democracyVotingPeriod](_queries_.apiqueries.md#democracyvotingperiod)*
*Defined in [Queries.ts:111](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L111)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="erablocklength"></a>
## eraBlockLength
▸ **eraBlockLength**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[eraBlockLength](_combined_.apicombined.md#erablocklength)*
*Defined in [Combined.ts:114](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L114)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="erablockprogress"></a>
## eraBlockProgress
▸ **eraBlockProgress**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[eraBlockProgress](_combined_.apicombined.md#erablockprogress)*
*Defined in [Combined.ts:129](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L129)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="erablockremaining"></a>
## eraBlockRemaining
▸ **eraBlockRemaining**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[eraBlockRemaining](_combined_.apicombined.md#erablockremaining)*
*Defined in [Combined.ts:151](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L151)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="eralastlengthchange"></a>
## eraLastLengthChange
▸ **eraLastLengthChange**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[eraLastLengthChange](_queries_.apiqueries.md#eralastlengthchange)*
*Defined in [Queries.ts:136](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L136)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="fees"></a>
## fees
▸ **fees**(): `Observable`<[RxFees](../modules/_types_d_.md#rxfees)>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[fees](_queries_.apiqueries.md#fees)*
*Defined in [Queries.ts:115](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L115)*
**Returns:** `Observable`<[RxFees](../modules/_types_d_.md#rxfees)>
___
<a id="getblock"></a>
## getBlock
▸ **getBlock**(hash: *`Uint8Array`*): `Observable`< `SignedBlock` &#124; `undefined`>
*Inherited from [ApiCalls](_calls_.apicalls.md).[getBlock](_calls_.apicalls.md#getblock)*
*Defined in [Calls.ts:29](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Calls.ts#L29)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| hash | `Uint8Array` |
**Returns:** `Observable`< `SignedBlock` &#124; `undefined`>
___
<a id="isconnected"></a>
## isConnected
▸ **isConnected**(): `Observable`<`boolean`>
*Inherited from [ApiBase](_base_.apibase.md).[isConnected](_base_.apibase.md#isconnected)*
*Defined in [Base.ts:82](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L82)*
**Returns:** `Observable`<`boolean`>
___
<a id="newhead"></a>
## newHead
▸ **newHead**(): `Observable`< `Header` &#124; `undefined`>
*Inherited from [ApiCalls](_calls_.apicalls.md).[newHead](_calls_.apicalls.md#newhead)*
*Defined in [Calls.ts:33](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Calls.ts#L33)*
**Returns:** `Observable`< `Header` &#124; `undefined`>
___
<a id="proposaldeposits"></a>
## proposalDeposits
▸ **proposalDeposits**(proposalId: * `PropIndex` &#124; `BN` &#124; `number`*): `Observable`< [RxProposalDeposits](_classes_.rxproposaldeposits.md) &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[proposalDeposits](_queries_.apiqueries.md#proposaldeposits)*
*Defined in [Queries.ts:47](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L47)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| proposalId | `PropIndex` &#124; `BN` &#124; `number`|
**Returns:** `Observable`< [RxProposalDeposits](_classes_.rxproposaldeposits.md) &#124; `undefined`>
___
<a id="publicproposalcount"></a>
## publicProposalCount
▸ **publicProposalCount**(): `Observable`<`number`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[publicProposalCount](_combined_.apicombined.md#publicproposalcount)*
*Defined in [Combined.ts:20](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L20)*
**Returns:** `Observable`<`number`>
___
<a id="publicproposals"></a>
## publicProposals
▸ **publicProposals**(): `Observable`<`Array`<[RxProposal](_classes_.rxproposal.md)>>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[publicProposals](_queries_.apiqueries.md#publicproposals)*
*Defined in [Queries.ts:60](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L60)*
**Returns:** `Observable`<`Array`<[RxProposal](_classes_.rxproposal.md)>>
___
<a id="rawcall"></a>
## rawCall
▸ **rawCall**<`T`>(__namedParameters: *`object`*, ...params: *`Array`<`any`>*): `Observable`<`T`>
*Inherited from [ApiBase](_base_.apibase.md).[rawCall](_base_.apibase.md#rawcall)*
*Defined in [Base.ts:86](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L86)*
**Type parameters:**
#### T
**Parameters:**
| Param | Type |
| ------ | ------ |
| __namedParameters | `object` |
| `Rest` params | `Array`<`any`> |
**Returns:** `Observable`<`T`>
___
<a id="rawstorage"></a>
## rawStorage
▸ **rawStorage**<`T`>(key: *`StorageFunction`*, ...params: *`Array`<`any`>*): `Observable`< `T` &#124; `undefined`>
*Inherited from [ApiBase](_base_.apibase.md).[rawStorage](_base_.apibase.md#rawstorage)*
*Defined in [Base.ts:98](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L98)*
**Type parameters:**
#### T
**Parameters:**
| Param | Type |
| ------ | ------ |
| key | `StorageFunction` |
| `Rest` params | `Array`<`any`> |
**Returns:** `Observable`< `T` &#124; `undefined`>
___
<a id="rawstoragemulti"></a>
## rawStorageMulti
▸ **rawStorageMulti**<`T`>(...keys: *`Array`< [`StorageFunction`] &#124; [`StorageFunction`, `any`]>*): `Observable`<`T`>
*Inherited from [ApiBase](_base_.apibase.md).[rawStorageMulti](_base_.apibase.md#rawstoragemulti)*
*Defined in [Base.ts:110](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Base.ts#L110)*
**Type parameters:**
#### T : `[]`
**Parameters:**
| Param | Type |
| ------ | ------ |
| `Rest` keys | `Array`< [`StorageFunction`] &#124; [`StorageFunction`, `any`]> |
**Returns:** `Observable`<`T`>
___
<a id="referendumcount"></a>
## referendumCount
▸ **referendumCount**(): `Observable`< `ReferendumIndex` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[referendumCount](_queries_.apiqueries.md#referendumcount)*
*Defined in [Queries.ts:79](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L79)*
**Returns:** `Observable`< `ReferendumIndex` &#124; `undefined`>
___
<a id="referenduminfo"></a>
## referendumInfo
▸ **referendumInfo**(referendumId: * `ReferendumIndex` &#124; `BN` &#124; `number`*): `Observable`< [RxReferendum](_classes_.rxreferendum.md) &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[referendumInfo](_queries_.apiqueries.md#referenduminfo)*
*Defined in [Queries.ts:83](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L83)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| referendumId | `ReferendumIndex` &#124; `BN` &#124; `number`|
**Returns:** `Observable`< [RxReferendum](_classes_.rxreferendum.md) &#124; `undefined`>
___
<a id="referendumvote"></a>
## referendumVote
▸ **referendumVote**(index: * `ReferendumIndex` &#124; `BN` &#124; `number`*, address: * `AccountId` &#124; `string`*): `Observable`< `Bool` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[referendumVote](_queries_.apiqueries.md#referendumvote)*
*Defined in [Queries.ts:96](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L96)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| index | `ReferendumIndex` &#124; `BN` &#124; `number`|
| address | `AccountId` &#124; `string`|
**Returns:** `Observable`< `Bool` &#124; `undefined`>
___
<a id="referendumvoters"></a>
## referendumVoters
▸ **referendumVoters**(index: * `ReferendumIndex` &#124; `BN` &#124; `number`*): `Observable`<`Array`<`AccountId`>>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[referendumVoters](_queries_.apiqueries.md#referendumvoters)*
*Defined in [Queries.ts:100](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L100)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| index | `ReferendumIndex` &#124; `BN` &#124; `number`|
**Returns:** `Observable`<`Array`<`AccountId`>>
___
<a id="referendumvotes"></a>
## referendumVotes
▸ **referendumVotes**(index: * `ReferendumIndex` &#124; `BN` &#124; `number`*, addresses: *`Array`< `AccountId` &#124; `string`>*): `Observable`<`boolean`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[referendumVotes](_combined_.apicombined.md#referendumvotes)*
*Defined in [Combined.ts:79](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L79)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| index | `ReferendumIndex` &#124; `BN` &#124; `number`|
| addresses | `Array`< `AccountId` &#124; `string`> |
**Returns:** `Observable`<`boolean`>
___
<a id="referendums"></a>
## referendums
▸ **referendums**(): `Observable`<`Array`<[RxReferendum](_classes_.rxreferendum.md)>>
*Inherited from [ApiCombined](_combined_.apicombined.md).[referendums](_combined_.apicombined.md#referendums)*
*Defined in [Combined.ts:58](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L58)*
**Returns:** `Observable`<`Array`<[RxReferendum](_classes_.rxreferendum.md)>>
___
<a id="referendumsinfo"></a>
## referendumsInfo
▸ **referendumsInfo**(referendumIds: *`Array`< `ReferendumIndex` &#124; `BN` &#124; `number`>*): `Observable`<`Array`<[RxReferendum](_classes_.rxreferendum.md)>>
*Inherited from [ApiCombined](_combined_.apicombined.md).[referendumsInfo](_combined_.apicombined.md#referendumsinfo)*
*Defined in [Combined.ts:30](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L30)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| referendumIds | `Array`< `ReferendumIndex` &#124; `BN` &#124; `number`> |
**Returns:** `Observable`<`Array`<[RxReferendum](_classes_.rxreferendum.md)>>
___
<a id="sessionblockprogress"></a>
## sessionBlockProgress
▸ **sessionBlockProgress**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[sessionBlockProgress](_combined_.apicombined.md#sessionblockprogress)*
*Defined in [Combined.ts:166](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L166)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="sessionblockremaining"></a>
## sessionBlockRemaining
▸ **sessionBlockRemaining**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[sessionBlockRemaining](_combined_.apicombined.md#sessionblockremaining)*
*Defined in [Combined.ts:185](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L185)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="sessionbrokenvalue"></a>
## sessionBrokenValue
▸ **sessionBrokenValue**(): `Observable`< `Moment` &#124; `undefined`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[sessionBrokenValue](_combined_.apicombined.md#sessionbrokenvalue)*
*Defined in [Combined.ts:200](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L200)*
**Returns:** `Observable`< `Moment` &#124; `undefined`>
___
<a id="sessioncurrentindex"></a>
## sessionCurrentIndex
▸ **sessionCurrentIndex**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[sessionCurrentIndex](_queries_.apiqueries.md#sessioncurrentindex)*
*Defined in [Queries.ts:148](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L148)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="sessioncurrentstart"></a>
## sessionCurrentStart
▸ **sessionCurrentStart**(): `Observable`< `Moment` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[sessionCurrentStart](_queries_.apiqueries.md#sessioncurrentstart)*
*Defined in [Queries.ts:152](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L152)*
**Returns:** `Observable`< `Moment` &#124; `undefined`>
___
<a id="sessionlastlengthchange"></a>
## sessionLastLengthChange
▸ **sessionLastLengthChange**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[sessionLastLengthChange](_queries_.apiqueries.md#sessionlastlengthchange)*
*Defined in [Queries.ts:156](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L156)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="sessionlength"></a>
## sessionLength
▸ **sessionLength**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[sessionLength](_queries_.apiqueries.md#sessionlength)*
*Defined in [Queries.ts:160](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L160)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="sessionreward"></a>
## sessionReward
▸ **sessionReward**(): `Observable`< `Perbill` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[sessionReward](_queries_.apiqueries.md#sessionreward)*
*Defined in [Queries.ts:140](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L140)*
**Returns:** `Observable`< `Perbill` &#124; `undefined`>
___
<a id="sessionrewardcurrent"></a>
## sessionRewardCurrent
▸ **sessionRewardCurrent**(): `Observable`< `Balance` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[sessionRewardCurrent](_queries_.apiqueries.md#sessionrewardcurrent)*
*Defined in [Queries.ts:144](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L144)*
**Returns:** `Observable`< `Balance` &#124; `undefined`>
___
<a id="sessiontimeexpected"></a>
## sessionTimeExpected
▸ **sessionTimeExpected**(): `Observable`< `Moment` &#124; `undefined`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[sessionTimeExpected](_combined_.apicombined.md#sessiontimeexpected)*
*Defined in [Combined.ts:219](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L219)*
**Returns:** `Observable`< `Moment` &#124; `undefined`>
___
<a id="sessiontimeremaining"></a>
## sessionTimeRemaining
▸ **sessionTimeRemaining**(): `Observable`< `Moment` &#124; `undefined`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[sessionTimeRemaining](_combined_.apicombined.md#sessiontimeremaining)*
*Defined in [Combined.ts:234](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L234)*
**Returns:** `Observable`< `Moment` &#124; `undefined`>
___
<a id="sessionvalidators"></a>
## sessionValidators
▸ **sessionValidators**(): `Observable`<`Array`<`AccountId`>>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[sessionValidators](_queries_.apiqueries.md#sessionvalidators)*
*Defined in [Queries.ts:168](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L168)*
**Returns:** `Observable`<`Array`<`AccountId`>>
___
<a id="sessionsperera"></a>
## sessionsPerEra
▸ **sessionsPerEra**(): `Observable`< `BlockNumber` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[sessionsPerEra](_queries_.apiqueries.md#sessionsperera)*
*Defined in [Queries.ts:164](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L164)*
**Returns:** `Observable`< `BlockNumber` &#124; `undefined`>
___
<a id="stakingintentions"></a>
## stakingIntentions
▸ **stakingIntentions**(): `Observable`<`Array`<`AccountId`>>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[stakingIntentions](_queries_.apiqueries.md#stakingintentions)*
*Defined in [Queries.ts:179](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L179)*
**Returns:** `Observable`<`Array`<`AccountId`>>
___
<a id="stakingnominating"></a>
## stakingNominating
▸ **stakingNominating**(address: * `AccountId` &#124; `string`*): `Observable`< `AccountId` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[stakingNominating](_queries_.apiqueries.md#stakingnominating)*
*Defined in [Queries.ts:201](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L201)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| address | `AccountId` &#124; `string`|
**Returns:** `Observable`< `AccountId` &#124; `undefined`>
___
<a id="stakingnominatorsfor"></a>
## stakingNominatorsFor
▸ **stakingNominatorsFor**(address: * `AccountId` &#124; `string`*): `Observable`<`Array`<`AccountId`>>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[stakingNominatorsFor](_queries_.apiqueries.md#stakingnominatorsfor)*
*Defined in [Queries.ts:190](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L190)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| address | `AccountId` &#124; `string`|
**Returns:** `Observable`<`Array`<`AccountId`>>
___
<a id="submitextrinsic"></a>
## submitExtrinsic
▸ **submitExtrinsic**(extrinsic: *`UncheckedMortalExtrinsic`*): `Observable`< `Hash` &#124; `undefined`>
*Inherited from [ApiCalls](_calls_.apicalls.md).[submitExtrinsic](_calls_.apicalls.md#submitextrinsic)*
*Defined in [Calls.ts:47](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Calls.ts#L47)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| extrinsic | `UncheckedMortalExtrinsic` |
**Returns:** `Observable`< `Hash` &#124; `undefined`>
___
<a id="systemname"></a>
## systemName
▸ **systemName**(): `Observable`< `Text` &#124; `undefined`>
*Inherited from [ApiCalls](_calls_.apicalls.md).[systemName](_calls_.apicalls.md#systemname)*
*Defined in [Calls.ts:39](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Calls.ts#L39)*
**Returns:** `Observable`< `Text` &#124; `undefined`>
___
<a id="systemversion"></a>
## systemVersion
▸ **systemVersion**(): `Observable`< `Text` &#124; `undefined`>
*Inherited from [ApiCalls](_calls_.apicalls.md).[systemVersion](_calls_.apicalls.md#systemversion)*
*Defined in [Calls.ts:43](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Calls.ts#L43)*
**Returns:** `Observable`< `Text` &#124; `undefined`>
___
<a id="validatingbalance"></a>
## validatingBalance
▸ **validatingBalance**(address: * `AccountId` &#124; `string`*): `Observable`<[RxBalance](../modules/_types_d_.md#rxbalance)>
*Inherited from [ApiCombined](_combined_.apicombined.md).[validatingBalance](_combined_.apicombined.md#validatingbalance)*
*Defined in [Combined.ts:249](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L249)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| address | `AccountId` &#124; `string`|
**Returns:** `Observable`<[RxBalance](../modules/_types_d_.md#rxbalance)>
___
<a id="validatingbalances"></a>
## validatingBalances
▸ **validatingBalances**(...addresses: *`Array`< `AccountId` &#124; `string`>*): `Observable`<[RxBalanceMap](../modules/_types_d_.md#rxbalancemap)>
*Inherited from [ApiCombined](_combined_.apicombined.md).[validatingBalances](_combined_.apicombined.md#validatingbalances)*
*Defined in [Combined.ts:274](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L274)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| `Rest` addresses | `Array`< `AccountId` &#124; `string`> |
**Returns:** `Observable`<[RxBalanceMap](../modules/_types_d_.md#rxbalancemap)>
___
<a id="validatorcount"></a>
## validatorCount
▸ **validatorCount**(): `Observable`< `u32` &#124; `undefined`>
*Inherited from [ApiQueries](_queries_.apiqueries.md).[validatorCount](_queries_.apiqueries.md#validatorcount)*
*Defined in [Queries.ts:205](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Queries.ts#L205)*
**Returns:** `Observable`< `u32` &#124; `undefined`>
___
<a id="votingbalance"></a>
## votingBalance
▸ **votingBalance**(_address: * `AccountId` &#124; `string`*): `Observable`<[RxBalance](../modules/_types_d_.md#rxbalance)>
*Inherited from [ApiCombined](_combined_.apicombined.md).[votingBalance](_combined_.apicombined.md#votingbalance)*
*Defined in [Combined.ts:288](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L288)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| _address | `AccountId` &#124; `string`|
**Returns:** `Observable`<[RxBalance](../modules/_types_d_.md#rxbalance)>
___
<a id="votingbalances"></a>
## votingBalances
▸ **votingBalances**(...addresses: *`Array`< `AccountId` &#124; `string`>*): `Observable`<[RxBalance](../modules/_types_d_.md#rxbalance)[]>
*Inherited from [ApiCombined](_combined_.apicombined.md).[votingBalances](_combined_.apicombined.md#votingbalances)*
*Defined in [Combined.ts:322](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L322)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| `Rest` addresses | `Array`< `AccountId` &#124; `string`> |
**Returns:** `Observable`<[RxBalance](../modules/_types_d_.md#rxbalance)[]>
___
<a id="votingbalancesnominatorsfor"></a>
## votingBalancesNominatorsFor
▸ **votingBalancesNominatorsFor**(address: * `AccountId` &#124; `string`*): `Observable`<`any`>
*Inherited from [ApiCombined](_combined_.apicombined.md).[votingBalancesNominatorsFor](_combined_.apicombined.md#votingbalancesnominatorsfor)*
*Defined in [Combined.ts:311](https://github.com/polkadot-js/api/blob/522eae6/packages/api-observable/src/Combined.ts#L311)*
**Parameters:**
| Param | Type |
| ------ | ------ |
| address | `AccountId` &#124; `string`|
**Returns:** `Observable`<`any`>
___
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