{
  "version": 3,
  "sources": ["../../src/compilerTransforms/utils.ts"],
  "sourcesContent": ["import invariant from \"invariant\";\nimport { CompilerContext, Fragment } from \"relay-compiler\";\n\nexport function implementsNodeInterface(\n  context: CompilerContext,\n  fragmentDefinition: Fragment,\n) {\n  const schema = context.getSchema();\n  const nodeType = schema.getTypeFromString(\"Node\");\n  invariant(\n    nodeType && schema.isInterface(nodeType),\n    \"Expected schema to define a Node interface in order to support narrow observables.\",\n  );\n  return schema.mayImplement(fragmentDefinition.type, nodeType);\n}\n"],
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