PrefixContext

class langchain_core.beta.runnables.context.PrefixContext(prefix: str = '')

Context for a runnable with a prefix.

Create a prefix context.

Parameters:

prefix (str) – The prefix.

Attributes

prefix

Methods

__init__([prefix])	Create a prefix context.
getter(key, /)	Return a prefixed context getter.
setter([_key, _value])	Return a prefixed context setter.

__init__(prefix: str = '')

Create a prefix context.

Parameters:

prefix (str) – The prefix.

getter(

key: str | list[str],

/,

) → ContextGet

Return a prefixed context getter.

Parameters:

key (str | list[str]) – The context getter key.

Return type:

ContextGet

setter(

_key: str | None = None,

_value: Runnable[Input, Output] | Callable[[Input], Output] | Callable[[Input], Awaitable[Output]] | Any | None = None,

/,

**kwargs: Runnable[Input, Output] | Callable[[Input], Output] | Callable[[Input], Awaitable[Output]] | Any,

) → ContextSet

Return a prefixed context setter.

Parameters:

• _key (str | None) – The context setter key.

• _value (Runnable[Input, Output] | Callable[[Input], Output] | Callable[[Input], Awaitable[Output]] | Any | None) – The context setter value.

• **kwargs (Runnable[Input, Output] | Callable[[Input], Output] | Callable[[Input], Awaitable[Output]] | Any) – Additional context setter key-value pairs.

Return type:

ContextSet