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1.132.3 ProcessEnvironment: accessing

add: newObject
Add the newObject association to the receiver


associationAt: key
Answer the value associated to the given key, or the result of evaluating aBlock if the key is not found


associationAt: key ifAbsent: aBlock
Answer the value associated to the given key, or the result of evaluating aBlock if the key is not found


at: key
Answer the value associated to the given key. Return nil if the key is not found


at: key ifAbsent: aBlock
Answer the value associated to the given key, or the result of evaluating aBlock if the key is not found


at: key ifAbsentPut: aBlock
Answer the value associated to the given key, setting it to the result of evaluating aBlock if the key is not found.


at: key ifPresent: aBlock
Answer the value associated to the given key, or the result of evaluating aBlock if the key is not found


at: key put: value
Store value as associated to the given key


keys
Answer a kind of Set containing the keys of the receiver