method SourceFile.prototype.copyToimport { SourceFile } from "https://deno.land/x/mesozoic@v1.0.0-alpha.15/mod.ts"; copyTo(to: string, filepath?): Promise<SourceFile>Parametersto: stringThe absolute path to copy the file to. optionalfilepath = [UNSUPPORTED]ReturnsPromise<SourceFile>An unlocked source file of the copied file.