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# `langchain.chains.graph_qa.cypher_utils`.Schema

class langchain.chains.graph_qa.cypher_utils.Schema(left_node, relation, right_node)

  Create new instance of Schema(left_node, relation, right_node)

  Attributes

  `left_node` | Alias for field number 0
  `relation` | Alias for field number 1
  `right_node` | Alias for field number 2

  Methods

  `__init__`() |
  `count`(value, /) | Return number of occurrences of value.
  `index`(value[, start, stop]) | Return first index of value.

  __init__()
  count(value, /)

    Return number of occurrences of value.

  index(value, start=0, stop=9223372036854775807, /)

    Return first index of value.

    Raises ValueError if the value is not present.

# Examples using Schema

- Uncomment the below to use LangSmith. Not required.