extract sub schema
    plain schema
      ✔ return a new schema the one sub schema
      - throws if not pointing to a subschema
    non property pointer
      ✔ extracts that schema
    not keyword
      ✔ extracts the not schema
    patternProperties
      ✔ includes the schema if allOf if matching the property name
    additionalProperties
      ✔ does not include the schema if matching properties or patternProperties
      ✔ does include the schema if not matching properties or patternProperties
      ✔ does include the schema if not matching properties or patternProperties
    dependentSchemas
      ✔ considers
      - works with nested dependencies
    schemas in arrays
      ✔ extracts allOf
      ✔ extracts anyOf
      ✔ extracts oneOf
      ✔ extracts deeply nested ones

  getTemplateVariableInfoFromInstance
    ✔ returns no value if not in instance
    ✔ sets properties as not accepting user input if no hrefSchema or set to false
    ✔ sets properties as not accepting user input if one property is false
    ✔ works with patternproperties
    ✔ works with normal properties, patternproperties and additionalProperties

  getTemplateData
    ✔ returns empty object when no templated parts
    ✔ returns data from instance when templated
    ✔ returns empty if not existing in the template
    ✔ supports absolute templatePointers
    ✔ returns all values
    ✔ supports relative templatePointers

  relative json pointer util
    resolve to value
      ✔ resolves 0 from root
      ✔ resolves 0
      ✔ resolves 1
      ✔ resolves 1/0
      ✔ resolves 1/highly/nested/objects
      ✔ resolves from within array to sibling array in parent
      ✔ does not throw if 0 value and root reference
      ✔ throws if with leading zeros
      ✔ throws if non number
      ✔ throws when trying to go above the root
      ✔ throws if trying to get key of root
      ✔ resolves 0/objects
    resolve to property name
      ✔ resolves to index in array
      ✔ resolves to property name

  Link discovery based on examples in the JSON hyper schema spec
    ✔ Spec examples: Entry point links, no templates. Example in 9.1
    ✔ Spec examples: Individually Identified Resources Example in 9.2
    ✔ Spec examples: Updated entry point schema with thing Example in 9.2
    ✔ Spec examples: Submitting a payload and accepting URI input Example in 9.3


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