Represents a serialized version of a few-shot template. This type
includes an _type field set to 'few_shot', input_variables which
are an array of strings representing the variables to be used in the
template, examples which can be a string or an array of Example
objects, an optional example_prompt which is a
SerializedPromptTemplate, example_separator which is a string,
optional prefix and suffix strings, and template_format which
specifies the format of the template.
SerializedFewShotTemplateExamples to format into the prompt. Exactly one of this or exampleSelector must be provided.
A prompt template string to put before the examples.
A prompt template string to put after the examples.