Painless contexts

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A Painless script is evaluated within a context. Each context has values that are available as local variables, an allowlist that controls the available classes, and the methods and fields within those classes (API), and if and what type of value is returned.

A Painless script is typically executed within one of the contexts in the table below. Note this is not necessarily a comprehensive list as custom plugins and specialized code may define new ways to use a Painless script.