class Prism::MagicComment: This represents a magic comment that was encountered during parsing.

class Proc: A +Proc+ object is an encapsulation of a block of code, which can be stored in a local variable, passed to a method or another Proc, and can be called

class Prism::RequiredKeywordParameterNode: Represents a required keyword parameter to a method, block, or lambda definition.

class Prism::NoKeywordsParameterNode: Represents the use of `**nil` inside method arguments.

class Prism::SourceEncodingNode: Represents the use of the `__ENCODING__` keyword.

module Prism::Translation: This module is responsible for converting the prism syntax tree into other syntax trees.

module Prism::Reflection: The Reflection module provides the ability to reflect on the structure of the syntax tree itself, as opposed to looking at a single syntax tree. This

class Psych::Coder: Coder will be passed to the method when the object is being serialized. Mapping is being emitted.

class Prism::MatchPredicateNode: Represents the use of the modifier `in` operator.

class Prism::SourceFileNode: Represents the use of the `__FILE__` keyword.