Found the following HTML validation problems:
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BlocksChildrenEndpoint.html:101:1 (BlocksChildrenEndpoint.Rd:95): Warning: <h5> anchor "Arguments" already defined
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CommentsEndpoint.html:95:1 (CommentsEndpoint.Rd:67): Warning: <h5> anchor "Usage" already defined
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DatabasesEndpoint.html:101:1 (DatabasesEndpoint.Rd:136): Warning: <h5> anchor "Usage" already defined
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NotionClient.html:225:1 (NotionClient.Rd:184): Warning: <h5> anchor "Usage" already defined
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PagesEndpoint.html:107:1 (PagesEndpoint.Rd:76): Warning: <h5> anchor "Usage" already defined
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PagesPropertiesEndpoint.html:95:1 (PagesPropertiesEndpoint.Rd:70): Warning: <h5> anchor "Usage" already defined
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UsersEndpoint.html:98:1 (UsersEndpoint.Rd:66): Warning: <h5> anchor "Usage" already defined
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UsersEndpoint.html:179:1 (UsersEndpoint.Rd:115): Warning: <h5> anchor "Details" already defined
vcr_example_helpers.html:49:1 (vcr_example_helpers.Rd:14): Warning: missing </ul> before </div>