Error: `mutation` root operation type is not defined
   ╭─[0015_mutation_operation_without_mutation_schema_definition.graphql:1:1]
   │
 1 │ ╭─▶ mutation adoptAPetMutation {
   ┆ ┆   
 7 │ ├─▶ }
   │ │       
   │ ╰─────── `mutation` is not defined in the schema and is therefore not supported
   │     
   │     Help: consider defining a `mutation` root operation type in your schema
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