common_graphql_client

/**

 * Creates a keyed JS object from an array, given a function to produce the keys

 * for each value in the array.

 *

 * This provides a convenient lookup for the array items if the key function

 * produces unique results.

 *

 *     const phoneBook = [

 *       { name: 'Jon', num: '555-1234' },

 *       { name: 'Jenny', num: '867-5309' }

 *     ]

 *

 *     // { Jon: { name: 'Jon', num: '555-1234' },

 *     //   Jenny: { name: 'Jenny', num: '867-5309' } }

 *     const entriesByName = keyMap(

 *       phoneBook,

 *       entry => entry.name

 *     )

 *

 *     // { name: 'Jenny', num: '857-6309' }

 *     const jennyEntry = entriesByName['Jenny']

 *

 */
export declare function keyMap<T>(list: ReadonlyArray<T>, keyFn: (item: T) => string): Record<string, T>;