Nick Kartashov

Support flushing command history

5

Previously command history was only flushed after the end of a session, this commit adds flushHistory function which performs the flushing and a flag to enforce flushing after every command....

## Describe the Bug I have the following code: ``` import pydantic import strawberry from typing import Optional class PydanticNullableType(pydantic.BaseModel): data: Optional[str] = None @strawberry.scalar class NullableString: @staticmethod def serialize(value:...