declare const Diagnostic: Schema.Struct<{
  readonly code: Schema.String
  readonly severity: Schema.Literals<readonly ["error", "warning", "info"]>
  readonly message: Schema.String
  readonly location: Schema.optionalKey<
    Schema.Struct<{ readonly file: Schema.String; readonly line: Schema.Int; readonly col: Schema.Int }>
  >
  readonly related: Schema.optionalKey<
    Schema.$Array<Schema.suspend<Schema.Codec<DiagnosticData, DiagnosticData, never, never>>>
  >
}>

type Diagnostic = DiagnosticData

declare const DiagnosticCode: Schema.String

declare const Location: Schema.Struct<{
  readonly file: Schema.String
  readonly line: Schema.Int
  readonly col: Schema.Int
}>

declare const Severity: Schema.Literals<readonly ["error", "warning", "info"]>

declare const hasErrors: (diagnostics: ReadonlyArray<Diagnostic>) => boolean