text: Action Input: data["paths"]["/completions"]["post"]    Observation: ['operationId', 'tags', 'summary', 'requestBody', 'responses', 'x-oaiMeta']    Thought: I should look at the requestBody key to see what parameters are required    Action: json_spec_list_keys    Action Input: data["paths"]["/completions"]["post"]["requestBody"]    Observation: ['required', 'content']    Thought: I should look at the content key to see what parameters are required    Action: json_spec_list_keys    Action Input: data["paths"]["/completions"]["post"]["requestBody"]["content"]    Observation: ['application/json']    Thought: I should look at the application/json key to see what parameters are required    Action: json_spec_list_keys    Action Input: data["paths"]["/completions"]["post"]["requestBody"]["content"]["application/json"]    Observation: ['schema']    Thought: I should look at the schema key to see what parameters are required    Action: json_spec_list_keys    Action Input: data["paths"]["/completions"]["post"]["requestBody"]["content"]["application/json"]["schema"]    Observation: ['$ref']    Thought: I should look at the $ref key to see what parameters are required    Action: json_spec_list_keys    Action Input: data["paths"]["/completions"]["post"]["requestBody"]["content"]["application/json"]["schema"]["$ref"]    Observation: ValueError('Value at path `data["paths"]["/completions"]["post"]["requestBody"]["content"]["application/json"]["schema"]["$ref"]` is not a dict, get the value directly.')    Thought: I should look at the $ref