Snowball token filter

A filter that stems words using a Snowball-generated stemmer. The language parameter controls the stemmer with the following available values: Arabic, Armenian, Basque, Catalan, Danish, Dutch, English, Estonian, Finnish, French, German, German2, Hungarian, Italian, Irish, Kp, Lithuanian, Lovins, Norwegian, Porter, Portuguese, Romanian, Russian, Serbian, Spanish, Swedish, Turkish.

For example:

resp = client.indices.create(
    index="my-index-000001",
    settings={
        "analysis": {
            "analyzer": {
                "my_analyzer": {
                    "tokenizer": "standard",
                    "filter": [
                        "lowercase",
                        "my_snow"
                    ]
                }
            },
            "filter": {
                "my_snow": {
                    "type": "snowball",
                    "language": "Lovins"
                }
            }
        }
    },
)
print(resp)

response = client.indices.create(
  index: 'my-index-000001',
  body: {
    settings: {
      analysis: {
        analyzer: {
          my_analyzer: {
            tokenizer: 'standard',
            filter: [
              'lowercase',
              'my_snow'
            ]
          }
        },
        filter: {
          my_snow: {
            type: 'snowball',
            language: 'Lovins'
          }
        }
      }
    }
  }
)
puts response

PUT /my-index-000001
{
  "settings": {
    "analysis": {
      "analyzer": {
        "my_analyzer": {
          "tokenizer": "standard",
          "filter": [ "lowercase", "my_snow" ]
        }
      },
      "filter": {
        "my_snow": {
          "type": "snowball",
          "language": "Lovins"
        }
      }
    }
  }
}

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