parsing subset of api spec

[nklskyoy]

For some purpose, I would like to parse only the components part of a swagger api spec.

However, when I use ResolvingParser('apischemas/schemas.yaml'), I get the exception

prance.ValidationError: ("'paths' is a required property [...]

Here's my schemas.yaml

openapi: '3.0.0'

info:
  title: 'api'
  version: '0.2'

components:
  schemas:

    ANALYSIS:
      $ref: "./schemas/common/analysis.yaml"
    LAB:
      $ref: "./schemas/LAB.yaml"^
    FAB:
      $ref: "./schemas/FAB.yaml"
    OPS: 
      $ref: "./schemas/OPS.yaml"
    ICD:
      $ref: "./schemas/ICD.yaml"
    FALL:
      $ref: "./schemas/FALL.yaml"

Is there a way to resolve only th components property?