import type { ProjectionParams } from './projections';
import type { Transformer } from './transformer';
/**
 * Parse a proj4 string or object into a projection object
 * TODO: Support json objects that use the jsonScheme.ts file
 * @param code - a proj4 projection definition string or object
 * @param transformer - the transformer to build the projection state around
 * @returns - a projection object
 */
export declare function parseProj(code: string | ProjectionParams, transformer: Transformer): ProjectionParams;
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