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Array[2]
[0]: Object{4}
level1_field1: string"顶层数据A"
level1_field2: number100
level1_field3: booleantrue
level2: Object{4}
level2_field1: string"第二层数据A-1"
level2_field2: number200
level2_field3: booleanfalse
level3: Object{4}
level3_field1: string"第三层数据A-1-1"
level3_field2: number300
level3_field3: string"active"
level4: Object{4}
level4_field1: string"第四层数据A-1-1-1"
level4_field2: number400
▶level4_field3: Array[2]
level5: Object{3}
level5_field1: string"第五层（最深层）数据"
level5_field2: number500
level5_field3: Object{3}
meta_key: string"额外信息"
timestamp: string"2026-05-25T10:12:00Z"
valid: booleantrue
[1]: Object{4}
level1_field1: string"顶层数据B"
level1_field2: number101
level1_field3: booleanfalse
▶level2: Object{4}