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 unusedVariableMessage(varName: string, opName: Maybe<string>): string;
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6 |
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7 | /**
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8 | * No unused variables
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9 | *
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10 | * A GraphQL operation is only valid if all variables defined by an operation
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11 | * are used, either directly or within a spread fragment.
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12 | */
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13 | export function NoUnusedVariables(context: ValidationContext): ASTVisitor;
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