| 1 | /**
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| 2 | * @fileoverview The instance of Ajv validator.
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| 3 | * @author Evgeny Poberezkin
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| 4 | */
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| 5 |
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| 6 | //------------------------------------------------------------------------------
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| 7 | // Requirements
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| 8 | //------------------------------------------------------------------------------
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| 9 |
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| 10 | import Ajv from "ajv";
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| 11 |
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| 12 | //-----------------------------------------------------------------------------
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| 13 | // Helpers
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| 14 | //-----------------------------------------------------------------------------
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| 15 |
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| 16 | /*
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| 17 | * Copied from ajv/lib/refs/json-schema-draft-04.json
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| 18 | * The MIT License (MIT)
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| 19 | * Copyright (c) 2015-2017 Evgeny Poberezkin
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| 20 | */
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| 21 | const metaSchema = {
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| 22 | id: "http://json-schema.org/draft-04/schema#",
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| 23 | $schema: "http://json-schema.org/draft-04/schema#",
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| 24 | description: "Core schema meta-schema",
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| 25 | definitions: {
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| 26 | schemaArray: {
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| 27 | type: "array",
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| 28 | minItems: 1,
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| 29 | items: { $ref: "#" }
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| 30 | },
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| 31 | positiveInteger: {
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| 32 | type: "integer",
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| 33 | minimum: 0
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| 34 | },
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| 35 | positiveIntegerDefault0: {
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| 36 | allOf: [{ $ref: "#/definitions/positiveInteger" }, { default: 0 }]
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| 37 | },
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| 38 | simpleTypes: {
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| 39 | enum: ["array", "boolean", "integer", "null", "number", "object", "string"]
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| 40 | },
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| 41 | stringArray: {
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| 42 | type: "array",
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| 43 | items: { type: "string" },
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| 44 | minItems: 1,
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| 45 | uniqueItems: true
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| 46 | }
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| 47 | },
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| 48 | type: "object",
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| 49 | properties: {
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| 50 | id: {
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| 51 | type: "string"
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| 52 | },
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| 53 | $schema: {
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| 54 | type: "string"
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| 55 | },
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| 56 | title: {
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| 57 | type: "string"
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| 58 | },
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| 59 | description: {
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| 60 | type: "string"
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| 61 | },
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| 62 | default: { },
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| 63 | multipleOf: {
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| 64 | type: "number",
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| 65 | minimum: 0,
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| 66 | exclusiveMinimum: true
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| 67 | },
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| 68 | maximum: {
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| 69 | type: "number"
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| 70 | },
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| 71 | exclusiveMaximum: {
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| 72 | type: "boolean",
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| 73 | default: false
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| 74 | },
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| 75 | minimum: {
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| 76 | type: "number"
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| 77 | },
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| 78 | exclusiveMinimum: {
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| 79 | type: "boolean",
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| 80 | default: false
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| 81 | },
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| 82 | maxLength: { $ref: "#/definitions/positiveInteger" },
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| 83 | minLength: { $ref: "#/definitions/positiveIntegerDefault0" },
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| 84 | pattern: {
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| 85 | type: "string",
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| 86 | format: "regex"
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| 87 | },
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| 88 | additionalItems: {
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| 89 | anyOf: [
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| 90 | { type: "boolean" },
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| 91 | { $ref: "#" }
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| 92 | ],
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| 93 | default: { }
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| 94 | },
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| 95 | items: {
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| 96 | anyOf: [
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| 97 | { $ref: "#" },
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| 98 | { $ref: "#/definitions/schemaArray" }
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| 99 | ],
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| 100 | default: { }
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| 101 | },
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| 102 | maxItems: { $ref: "#/definitions/positiveInteger" },
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| 103 | minItems: { $ref: "#/definitions/positiveIntegerDefault0" },
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| 104 | uniqueItems: {
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| 105 | type: "boolean",
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| 106 | default: false
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| 107 | },
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| 108 | maxProperties: { $ref: "#/definitions/positiveInteger" },
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| 109 | minProperties: { $ref: "#/definitions/positiveIntegerDefault0" },
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| 110 | required: { $ref: "#/definitions/stringArray" },
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| 111 | additionalProperties: {
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| 112 | anyOf: [
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| 113 | { type: "boolean" },
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| 114 | { $ref: "#" }
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| 115 | ],
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| 116 | default: { }
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| 117 | },
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| 118 | definitions: {
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| 119 | type: "object",
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| 120 | additionalProperties: { $ref: "#" },
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| 121 | default: { }
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| 122 | },
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| 123 | properties: {
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| 124 | type: "object",
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| 125 | additionalProperties: { $ref: "#" },
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| 126 | default: { }
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| 127 | },
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| 128 | patternProperties: {
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| 129 | type: "object",
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| 130 | additionalProperties: { $ref: "#" },
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| 131 | default: { }
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| 132 | },
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| 133 | dependencies: {
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| 134 | type: "object",
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| 135 | additionalProperties: {
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| 136 | anyOf: [
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| 137 | { $ref: "#" },
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| 138 | { $ref: "#/definitions/stringArray" }
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| 139 | ]
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| 140 | }
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| 141 | },
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| 142 | enum: {
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| 143 | type: "array",
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| 144 | minItems: 1,
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| 145 | uniqueItems: true
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| 146 | },
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| 147 | type: {
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| 148 | anyOf: [
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| 149 | { $ref: "#/definitions/simpleTypes" },
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| 150 | {
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| 151 | type: "array",
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| 152 | items: { $ref: "#/definitions/simpleTypes" },
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| 153 | minItems: 1,
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| 154 | uniqueItems: true
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| 155 | }
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| 156 | ]
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| 157 | },
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| 158 | format: { type: "string" },
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| 159 | allOf: { $ref: "#/definitions/schemaArray" },
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| 160 | anyOf: { $ref: "#/definitions/schemaArray" },
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| 161 | oneOf: { $ref: "#/definitions/schemaArray" },
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| 162 | not: { $ref: "#" }
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| 163 | },
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| 164 | dependencies: {
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| 165 | exclusiveMaximum: ["maximum"],
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| 166 | exclusiveMinimum: ["minimum"]
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| 167 | },
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| 168 | default: { }
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| 169 | };
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| 170 |
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| 171 | //------------------------------------------------------------------------------
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| 172 | // Public Interface
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| 173 | //------------------------------------------------------------------------------
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| 174 |
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| 175 | export default (additionalOptions = {}) => {
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| 176 | const ajv = new Ajv({
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| 177 | meta: false,
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| 178 | useDefaults: true,
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| 179 | validateSchema: false,
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| 180 | missingRefs: "ignore",
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| 181 | verbose: true,
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| 182 | schemaId: "auto",
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| 183 | ...additionalOptions
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| 184 | });
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| 185 |
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| 186 | ajv.addMetaSchema(metaSchema);
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| 187 | // eslint-disable-next-line no-underscore-dangle
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| 188 | ajv._opts.defaultMeta = metaSchema.id;
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| 189 |
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| 190 | return ajv;
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| 191 | };
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