message: removed unnecessary ctor type
diff: @@ -406,7 +406,7 @@ export class SchemaKey {
  // TODO: need to add a checksum
  constructor(name: string, version: ECVersion);
  - constructor(name: string, read?: number | ECVersion, writeVersion?: number, minorVersion?: number);
  + constructor(name: string, readVersion?: number, writeVersion?: number, minorVersion?: number);
  constructor(name: string, readOrVersion?: number | ECVersion, writeVersion?: number, minorVersion?: number) {
  this._name = new ECName(name);
  if (readOrVersion !== undefined && readOrVersion instanceof ECVersion)
  