import { GraphQLSchema, GraphQLType } from "graphql";
import type { SourceGraphQLSchema } from "./@types/index.js";
/**
 * Capitalize the first character of a string. If the first character of the
 * given string is not a letter, there is no effect.
 */
export declare function capitalize(str: string): string;
/**
 * Given a GraphQL schema which may be a string or an AST, it returns an
 * executable version of that schema. If the schema passed in is already
 * executable, it returns the schema as-is.
 */
export declare function ensureExecutableGraphQLSchema(graphQLSchema: SourceGraphQLSchema): GraphQLSchema;
/**
 * Unwraps GraphQL types, e.g., a non-null list of objects, to determine the
 * underlying type. It also considers types like Relay connections and edges.
 * This is useful when querying for list or non-null types and needing to know
 * which underlying type of record(s) to fetch from Mirage's database.
 */
export declare function unwrapType(type: GraphQLType, options?: {
    considerRelay: boolean;
    isList: boolean;
}): {
    isList: boolean;
    type: GraphQLType;
};