| 1 | import Maybe from "../../tsutils/Maybe";
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| 2 | import { ValidationContext } from "../ValidationContext";
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| 3 | import { ASTVisitor } from "../../language/visitor";
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| 4 |
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| 5 | export function undefinedVarMessage(varName: string, opName: Maybe<string>): string;
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| 6 |
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| 7 | /**
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| 8 | * No undefined variables
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| 9 | *
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| 10 | * A GraphQL operation is only valid if all variables encountered, both directly
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| 11 | * and via fragment spreads, are defined by that operation.
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| 12 | */
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| 13 | export function NoUndefinedVariables(context: ValidationContext): ASTVisitor;
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