List<String> attributes = new List<String>() {"Attribute A", "Attribute B"};
CredentialDefinitionContract credentialDefinition = await _credentialsClient.CreateCredentialDefinitionAsync(new CredentialDefinitionFromSchemaParameters {
  Name = "Schema Name",
  Version = "1.0", // Must follow Semantic Versioning scheme (https://semver.org),
  Attributes = attributes,
  SupportRevocation = false,
  Tag = "tag" // Tag to identify the schema
});

let attributes = ["Attribute A", "Attribute B"];
let credentialDefinition = await credentialsClient.createCredentialDefinition({
  name: "Schema Name",
  version: "1.0", // Must follow Semantic Versioning scheme (https://semver.org),
  attributes: attributes,
  supportRevocation: false, // Enable revocation at a later date
  tag: "tag" // Tag to identify the schema
});

attributes = ["Attribute A", "Attribute B"]
credential_definition = credentials_client.create_credential_definition({
  "name": "Schema Name",
  "version": "1.0",  # Must follow Semantic Versioning scheme (https: #semver.org),
  "attributes": attributes,
  "supportRevocation": False,  # Enable revocation at a later date
  "tag": "tag"  # Tag to identify the schema
})

body = Credentials::Models::CredentialDefinitionFromSchemaParameters.new
body.name = 'Schema Name'
body.version = '1.0'  # Must follow Semantic Versioning scheme (https: #semver.org)
body.attributes = ['Attribute A', 'Attribute B']
body.support_revocation = false # Enable revocation at a later date
body.tag = 'tag' # Tag to identify the schema
credential_definition = credentials_client.create_credential_definition(body)