Class: BaseChain
chains.BaseChain
Base interface that all chains must implement.
Hierarchy
BaseChain↳
LLMChain
Implements
Constructors
constructor
• new BaseChain(memory?, verbose?, callbackManager?)
Parameters
| Name | Type |
|---|---|
memory? | BaseMemory |
verbose? | boolean |
callbackManager? | CallbackManager |
Defined in
langchain/src/chains/base.ts:27
Properties
callbackManager
• callbackManager: CallbackManager
Implementation of
Defined in
langchain/src/chains/base.ts:25
memory
• Optional memory: BaseMemory
Implementation of
Defined in
langchain/src/chains/base.ts:21
verbose
• verbose: boolean
Implementation of
Defined in
langchain/src/chains/base.ts:23
Accessors
inputKeys
• Abstract get inputKeys(): string[]
Returns
string[]
Defined in
langchain/src/chains/base.ts:52
Methods
_call
▸ Abstract _call(values): Promise<ChainValues>
Run the core logic of this chain and return the output
Parameters
| Name | Type |
|---|---|
values | ChainValues |
Returns
Promise<ChainValues>
Defined in
langchain/src/chains/base.ts:40
_chainType
▸ Abstract _chainType(): string
Return the string type key uniquely identifying this class of chain.
Returns
string
Defined in
langchain/src/chains/base.ts:45
apply
▸ apply(inputs): Promise<ChainValues>
Call the chain on all inputs in the list
Parameters
| Name | Type |
|---|---|
inputs | ChainValues[] |
Returns
Promise<ChainValues>
Defined in
langchain/src/chains/base.ts:109
call
▸ call(values): Promise<ChainValues>
Run the core logic of this chain and add to output if desired.
Wraps _call and handles memory.
Parameters
| Name | Type |
|---|---|
values | ChainValues |
Returns
Promise<ChainValues>
Defined in
langchain/src/chains/base.ts:79
run
▸ run(input): Promise<string>
Parameters
| Name | Type |
|---|---|
input | any |
Returns
Promise<string>
Defined in
langchain/src/chains/base.ts:55
serialize
▸ Abstract serialize(): SerializedBaseChain
Return a json-like object representing this chain.
Returns
Defined in
langchain/src/chains/base.ts:50
deserialize
▸ Static deserialize(data, values?): Promise<BaseChain>
Load a chain from a json-like object describing it.
Parameters
| Name | Type |
|---|---|
data | SerializedBaseChain |
values | LoadValues |
Returns
Promise<BaseChain>
Defined in
langchain/src/chains/base.ts:116