@option arguments String :id The document ID (*Required*)
@option arguments String :index The name of the index (*Required*)
@option arguments String :type The type of the document (default: _all)
@option arguments String :parent The ID of the parent document
@option arguments String :preference Specify the node or shard the operation should be performed on
(default: random)
@option arguments Boolean :realtime Specify whether to perform the operation in realtime or search mode
@option arguments Boolean :refresh Refresh the shard containing the document before performing the operation
@option arguments String :routing Specific routing value
Return true if the specified document exists, false otherwise.
@example
client.exists? index: 'myindex', type: 'mytype', id: '1'
@option arguments String :id The document ID (*Required*) @option arguments String :index The name of the index (*Required*) @option arguments String :type The type of the document (default: _all) @option arguments String :parent The ID of the parent document @option arguments String :preference Specify the node or shard the operation should be performed on (default: random) @option arguments Boolean :realtime Specify whether to perform the operation in realtime or search mode @option arguments Boolean :refresh Refresh the shard containing the document before performing the operation @option arguments String :routing Specific routing value
@see http://elasticsearch.org/guide/reference/api/get/