{
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  "Package": "chk",
  "Title": "Check User-Supplied Function Arguments",
  "Version": "0.10.0.9027",
  "Authors@R": "c(\nperson(\"Joe\", \"Thorley\", , \"joe@poissonconsulting.ca\", role = c(\"aut\", \"cre\"),\ncomment = c(ORCID = \"0000-0002-7683-4592\")),\nperson(\"Kirill\", \"Müller\", role = \"aut\",\ncomment = c(ORCID = \"0000-0002-1416-3412\")),\nperson(\"Ayla\", \"Pearson\", role = \"aut\",\ncomment = c(ORCID = \"0000-0001-7388-1222\")),\nperson(\"Florencia\", \"D'Andrea\", role = \"ctb\"),\nperson(\"Nadine\", \"Hussein\", , \"nadine@poissonconsulting.ca\", role = \"ctb\",\ncomment = c(ORCID = \"0000-0003-4470-8361\")),\nperson(\"Evan\", \"Amies-Galonski\", , \"evanamiesgalonski@gmail.com\", role = \"ctb\",\ncomment = c(ORCID = \"0000-0003-1096-2089\")),\nperson(\"Stefano\", \"Mezzini\", , \"stefano@poissonconsulting.ca\", role = \"ctb\",\ncomment = c(ORCID = \"0000-0001-8551-7436\")),\nperson(\"Poisson Consulting\", role = c(\"cph\", \"fnd\"))\n)",
  "Description": "For developers to check user-supplied function arguments.\nIt is designed to be simple, fast and customizable.  Error\nmessages follow the tidyverse style guide.",
  "License": "MIT + file LICENSE",
  "URL": "https://github.com/poissonconsulting/chk,\nhttps://poissonconsulting.github.io/chk/",
  "BugReports": "https://github.com/poissonconsulting/chk/issues/",
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  "Repository": "https://poissonconsulting.r-universe.dev",
  "Date/Publication": "2026-06-07 21:06:23 UTC",
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    "User": "root"
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  "Author": "Joe Thorley [aut, cre] (ORCID: <https://orcid.org/0000-0002-7683-4592>),\nKirill Müller [aut] (ORCID: <https://orcid.org/0000-0002-1416-3412>),\nAyla Pearson [aut] (ORCID: <https://orcid.org/0000-0001-7388-1222>),\nFlorencia D'Andrea [ctb],\nNadine Hussein [ctb] (ORCID: <https://orcid.org/0000-0003-4470-8361>),\nEvan Amies-Galonski [ctb] (ORCID:\n<https://orcid.org/0000-0003-1096-2089>),\nStefano Mezzini [ctb] (ORCID: <https://orcid.org/0000-0001-8551-7436>),\nPoisson Consulting [cph, fnd]",
  "Maintainer": "Joe Thorley <joe@poissonconsulting.ca>",
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  "_homeurl": "https://github.com/poissonconsulting/chk",
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    "abort_chk",
    "backtick_chk",
    "cc",
    "check_data",
    "check_dim",
    "check_dirs",
    "check_files",
    "check_key",
    "check_length",
    "check_names",
    "check_values",
    "chk_all",
    "chk_all_equal",
    "chk_all_equivalent",
    "chk_all_identical",
    "chk_array",
    "chk_atomic",
    "chk_character",
    "chk_character_or_factor",
    "chk_chr",
    "chk_compatible_lengths",
    "chk_complex",
    "chk_complex_number",
    "chk_count",
    "chk_data",
    "chk_date",
    "chk_date_time",
    "chk_datetime",
    "chk_dbl",
    "chk_dir",
    "chk_dirs",
    "chk_double",
    "chk_environment",
    "chk_equal",
    "chk_equivalent",
    "chk_ext",
    "chk_factor",
    "chk_false",
    "chk_file",
    "chk_files",
    "chk_flag",
    "chk_function",
    "chk_gt",
    "chk_gte",
    "chk_has",
    "chk_identical",
    "chk_in",
    "chk_integer",
    "chk_is",
    "chk_join",
    "chk_length",
    "chk_lgl",
    "chk_list",
    "chk_logical",
    "chk_lt",
    "chk_lte",
    "chk_match",
    "chk_matrix",
    "chk_missing",
    "chk_named",
    "chk_no_missing",
    "chk_not_any_na",
    "chk_not_empty",
    "chk_not_missing",
    "chk_not_null",
    "chk_not_subset",
    "chk_null",
    "chk_null_or",
    "chk_number",
    "chk_numeric",
    "chk_off",
    "chk_on",
    "chk_orderset",
    "chk_proportion",
    "chk_range",
    "chk_raw",
    "chk_s3_class",
    "chk_s4_class",
    "chk_scalar",
    "chk_setequal",
    "chk_sorted",
    "chk_string",
    "chk_subset",
    "chk_superset",
    "chk_true",
    "chk_tz",
    "chk_unique",
    "chk_unused",
    "chk_used",
    "chk_valid_name",
    "chk_vector",
    "chk_whole_number",
    "chk_whole_numeric",
    "chk_wnum",
    "chkor",
    "chkor_vld",
    "deparse_backtick",
    "deparse_backtick_chk",
    "err",
    "expect_chk_error",
    "generate_check_data",
    "is_chk_on",
    "message_chk",
    "msg",
    "p",
    "p0",
    "unbacktick_chk",
    "vld_all",
    "vld_all_equal",
    "vld_all_equivalent",
    "vld_all_identical",
    "vld_array",
    "vld_atomic",
    "vld_character",
    "vld_character_or_factor",
    "vld_chr",
    "vld_compatible_lengths",
    "vld_complex",
    "vld_complex_number",
    "vld_count",
    "vld_data",
    "vld_date",
    "vld_date_time",
    "vld_datetime",
    "vld_dbl",
    "vld_dir",
    "vld_double",
    "vld_environment",
    "vld_equal",
    "vld_equivalent",
    "vld_ext",
    "vld_factor",
    "vld_false",
    "vld_file",
    "vld_flag",
    "vld_function",
    "vld_gt",
    "vld_gte",
    "vld_identical",
    "vld_integer",
    "vld_is",
    "vld_join",
    "vld_length",
    "vld_lgl",
    "vld_list",
    "vld_logical",
    "vld_lt",
    "vld_lte",
    "vld_match",
    "vld_matrix",
    "vld_missing",
    "vld_named",
    "vld_no_missing",
    "vld_not_any_na",
    "vld_not_empty",
    "vld_not_missing",
    "vld_not_null",
    "vld_not_subset",
    "vld_null",
    "vld_number",
    "vld_numeric",
    "vld_orderset",
    "vld_range",
    "vld_raw",
    "vld_s3_class",
    "vld_s4_class",
    "vld_scalar",
    "vld_setequal",
    "vld_sorted",
    "vld_string",
    "vld_subset",
    "vld_superset",
    "vld_true",
    "vld_tz",
    "vld_unique",
    "vld_unused",
    "vld_used",
    "vld_valid_name",
    "vld_vector",
    "vld_whole_number",
    "vld_whole_numeric",
    "vld_wnum",
    "wrn"
  ],
  "_help": [
    {
      "page": "abort_chk",
      "title": "Abort Check",
      "topics": [
        "abort_chk"
      ]
    },
    {
      "page": "cc",
      "title": "Concatenate with Commas",
      "topics": [
        "cc"
      ]
    },
    {
      "page": "check_data",
      "title": "Check Data",
      "concept": [
        "check"
      ],
      "topics": [
        "check_data"
      ]
    },
    {
      "page": "check_dim",
      "title": "Check Dimension",
      "concept": [
        "check"
      ],
      "topics": [
        "check_dim"
      ]
    },
    {
      "page": "check_dirs",
      "title": "Check Directories Exist",
      "concept": [
        "check"
      ],
      "topics": [
        "check_dirs"
      ]
    },
    {
      "page": "check_files",
      "title": "Check Files Exist",
      "concept": [
        "check"
      ],
      "topics": [
        "check_files"
      ]
    },
    {
      "page": "check_key",
      "title": "Check Key",
      "concept": [
        "check"
      ],
      "topics": [
        "check_key"
      ]
    },
    {
      "page": "check_length",
      "title": "Check Length",
      "concept": [
        "check"
      ],
      "topics": [
        "check_length"
      ]
    },
    {
      "page": "check_names",
      "title": "Check Names",
      "concept": [
        "check"
      ],
      "topics": [
        "check_names"
      ]
    },
    {
      "page": "check_values",
      "title": "Check Values and Class",
      "concept": [
        "check"
      ],
      "topics": [
        "check_values"
      ]
    },
    {
      "page": "chk_all",
      "title": "Check All",
      "concept": [
        "all_checkers"
      ],
      "topics": [
        "chk_all",
        "vld_all"
      ]
    },
    {
      "page": "chk_all_equal",
      "title": "Check All Equal",
      "concept": [
        "all_checkers",
        "equal_checkers"
      ],
      "topics": [
        "chk_all_equal",
        "vld_all_equal"
      ]
    },
    {
      "page": "chk_all_equivalent",
      "title": "Check All Equivalent",
      "concept": [
        "all_checkers",
        "equal_checkers"
      ],
      "topics": [
        "chk_all_equivalent",
        "vld_all_equivalent"
      ]
    },
    {
      "page": "chk_all_identical",
      "title": "Check All Identical",
      "concept": [
        "all_checkers",
        "equal_checkers"
      ],
      "topics": [
        "chk_all_identical",
        "vld_all_identical"
      ]
    },
    {
      "page": "chk_array",
      "title": "Check Array",
      "concept": [
        "data_structure_checkers"
      ],
      "topics": [
        "chk_array",
        "vld_array"
      ]
    },
    {
      "page": "chk_atomic",
      "title": "Check Atomic",
      "concept": [
        "data_structure_checkers"
      ],
      "topics": [
        "chk_atomic",
        "vld_atomic"
      ]
    },
    {
      "page": "chk_character",
      "title": "Check Character",
      "concept": [
        "data_type_checkers"
      ],
      "topics": [
        "chk_character",
        "vld_character"
      ]
    },
    {
      "page": "chk_character_or_factor",
      "title": "Check Character or Factor",
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        "factor_checkers"
      ],
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        "chk_character_or_factor",
        "vld_character_or_factor"
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    },
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      "page": "chk_chr",
      "title": "Check Character Scalar",
      "concept": [
        "deprecated"
      ],
      "topics": [
        "chk_chr",
        "vld_chr"
      ]
    },
    {
      "page": "chk_compatible_lengths",
      "title": "Check Compatible Lengths",
      "concept": [
        "length_checkers"
      ],
      "topics": [
        "chk_compatible_lengths",
        "vld_compatible_lengths"
      ]
    },
    {
      "page": "chk_complex",
      "title": "Check Complex",
      "concept": [
        "data_type_checkers"
      ],
      "topics": [
        "chk_complex",
        "vld_complex"
      ]
    },
    {
      "page": "chk_complex_number",
      "title": "Check Complex Number",
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      ],
      "topics": [
        "chk_complex_number",
        "vld_complex_number"
      ]
    },
    {
      "page": "chk_count",
      "title": "Check Count",
      "concept": [
        "scalar_checkers",
        "whole_number_checkers"
      ],
      "topics": [
        "chk_count",
        "vld_count"
      ]
    },
    {
      "page": "chk_data",
      "title": "Check Data",
      "concept": [
        "id_checkers"
      ],
      "topics": [
        "chk_data",
        "vld_data"
      ]
    },
    {
      "page": "chk_date",
      "title": "Check Date",
      "concept": [
        "datetime_checkers",
        "scalar_checkers"
      ],
      "topics": [
        "chk_date",
        "vld_date"
      ]
    },
    {
      "page": "chk_date_time",
      "title": "Check Date Time",
      "concept": [
        "datetime_checkers",
        "scalar_checkers"
      ],
      "topics": [
        "chk_datetime",
        "chk_date_time",
        "vld_datetime",
        "vld_date_time"
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    },
    {
      "page": "chk_dbl",
      "title": "Check Double Scalar",
      "concept": [
        "deprecated"
      ],
      "topics": [
        "chk_dbl",
        "vld_dbl"
      ]
    },
    {
      "page": "chk_dir",
      "title": "Check Directory Exists",
      "concept": [
        "file_checkers"
      ],
      "topics": [
        "chk_dir",
        "vld_dir"
      ]
    },
    {
      "page": "chk_double",
      "title": "Check Double",
      "concept": [
        "data_type_checkers"
      ],
      "topics": [
        "chk_double",
        "vld_double"
      ]
    },
    {
      "page": "chk_environment",
      "title": "Check Environment",
      "concept": [
        "data_type_checkers"
      ],
      "topics": [
        "chk_environment",
        "vld_environment"
      ]
    },
    {
      "page": "chk_equal",
      "title": "Check Equal",
      "concept": [
        "equal_checkers"
      ],
      "topics": [
        "chk_equal",
        "vld_equal"
      ]
    },
    {
      "page": "chk_equivalent",
      "title": "Check Equivalent",
      "concept": [
        "equal_checkers"
      ],
      "topics": [
        "chk_equivalent",
        "vld_equivalent"
      ]
    },
    {
      "page": "chk_ext",
      "title": "Check File Extension",
      "concept": [
        "file_checkers"
      ],
      "topics": [
        "chk_ext",
        "vld_ext"
      ]
    },
    {
      "page": "chk_factor",
      "title": "Check Factor",
      "concept": [
        "data_type_checkers",
        "factor_checkers"
      ],
      "topics": [
        "chk_factor",
        "vld_factor"
      ]
    },
    {
      "page": "chk_false",
      "title": "Check FALSE",
      "concept": [
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        "scalar_checkers"
      ],
      "topics": [
        "chk_false",
        "vld_false"
      ]
    },
    {
      "page": "chk_file",
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      "concept": [
        "file_checkers"
      ],
      "topics": [
        "chk_file",
        "vld_file"
      ]
    },
    {
      "page": "chk_flag",
      "title": "Check Flag",
      "concept": [
        "logical_checkers",
        "scalar_checkers"
      ],
      "topics": [
        "chk_flag",
        "vld_flag"
      ]
    },
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      "page": "chk_function",
      "title": "Check Function",
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        "function_checkers",
        "missing_checkers"
      ],
      "topics": [
        "chk_function",
        "vld_function"
      ]
    },
    {
      "page": "chk_gt",
      "title": "Check Greater Than",
      "concept": [
        "range_checkers"
      ],
      "topics": [
        "chk_gt",
        "vld_gt"
      ]
    },
    {
      "page": "chk_gte",
      "title": "Check Greater Than or Equal To",
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        "range_checkers"
      ],
      "topics": [
        "chk_gte",
        "vld_gte"
      ]
    },
    {
      "page": "chk_identical",
      "title": "Check Identical",
      "concept": [
        "equal_checkers"
      ],
      "topics": [
        "chk_identical",
        "vld_identical"
      ]
    },
    {
      "page": "chk_integer",
      "title": "Check Integer",
      "concept": [
        "data_type_checkers"
      ],
      "topics": [
        "chk_integer",
        "vld_integer"
      ]
    },
    {
      "page": "chk_is",
      "title": "Check Class",
      "concept": [
        "id_checkers"
      ],
      "topics": [
        "chk_is",
        "vld_is"
      ]
    },
    {
      "page": "chk_join",
      "title": "Check Join",
      "concept": [
        "misc_checkers"
      ],
      "topics": [
        "chk_join",
        "vld_join"
      ]
    },
    {
      "page": "chk_length",
      "title": "Check Length",
      "concept": [
        "length_checkers"
      ],
      "topics": [
        "chk_length",
        "vld_length"
      ]
    },
    {
      "page": "chk_lgl",
      "title": "Check Logical Scalar",
      "concept": [
        "logical_checkers",
        "scalar_checkers"
      ],
      "topics": [
        "chk_lgl",
        "vld_lgl"
      ]
    },
    {
      "page": "chk_list",
      "title": "Check List",
      "concept": [
        "data_structure_checkers"
      ],
      "topics": [
        "chk_list",
        "vld_list"
      ]
    },
    {
      "page": "chk_logical",
      "title": "Check Logical",
      "concept": [
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        "logical_checkers"
      ],
      "topics": [
        "chk_logical",
        "vld_logical"
      ]
    },
    {
      "page": "chk_lt",
      "title": "Check Less Than",
      "concept": [
        "range_checkers"
      ],
      "topics": [
        "chk_lt",
        "vld_lt"
      ]
    },
    {
      "page": "chk_lte",
      "title": "Check Less Than or Equal To",
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      ],
      "topics": [
        "chk_lte",
        "vld_lte"
      ]
    },
    {
      "page": "chk_match",
      "title": "Check Matches",
      "concept": [
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      ],
      "topics": [
        "chk_match",
        "vld_match"
      ]
    },
    {
      "page": "chk_matrix",
      "title": "Check Matrix",
      "concept": [
        "data_structure_checkers"
      ],
      "topics": [
        "chk_matrix",
        "vld_matrix"
      ]
    },
    {
      "page": "chk_missing",
      "title": "Check Missing Argument",
      "concept": [
        "missing_checkers"
      ],
      "topics": [
        "chk_missing",
        "vld_missing"
      ]
    },
    {
      "page": "chk_named",
      "title": "Check Named",
      "concept": [
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      ],
      "topics": [
        "chk_named",
        "vld_named"
      ]
    },
    {
      "page": "chk_not_any_na",
      "title": "Check Not Any Missing Values",
      "concept": [
        "misc_checkers"
      ],
      "topics": [
        "chk_not_any_na",
        "vld_not_any_na"
      ]
    },
    {
      "page": "chk_not_empty",
      "title": "Check Not Empty",
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      ],
      "topics": [
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        "vld_not_empty"
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    },
    {
      "page": "chk_not_missing",
      "title": "Check Not Missing Argument",
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      "topics": [
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        "vld_not_missing"
      ]
    },
    {
      "page": "chk_not_null",
      "title": "Check not NULL",
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        "vld_not_null"
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    },
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      "page": "chk_not_subset",
      "title": "Check Not Subset",
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      ],
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        "vld_not_subset"
      ]
    },
    {
      "page": "chk_null",
      "title": "Check NULL",
      "concept": [
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      ],
      "topics": [
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        "vld_null"
      ]
    },
    {
      "page": "chk_null_or",
      "title": "Check NULL Or",
      "topics": [
        "chk_null_or"
      ]
    },
    {
      "page": "chk_number",
      "title": "Check Number",
      "concept": [
        "data_type_checkers",
        "scalar_checkers"
      ],
      "topics": [
        "chk_number",
        "vld_number"
      ]
    },
    {
      "page": "chk_numeric",
      "title": "Check Numeric",
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      ],
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        "vld_numeric"
      ]
    },
    {
      "page": "chk_orderset",
      "title": "Check Set Ordered",
      "concept": [
        "set_checkers"
      ],
      "topics": [
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        "vld_orderset"
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    },
    {
      "page": "chk_range",
      "title": "Checks range of non-missing values",
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      "page": "chk_raw",
      "title": "Check Raw",
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      "page": "chk_s3_class",
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    },
    {
      "page": "chk_s4_class",
      "title": "Check Inherits from S4 Class",
      "concept": [
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      "topics": [
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        "vld_s4_class"
      ]
    },
    {
      "page": "chk_scalar",
      "title": "Check Scalar",
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      ]
    },
    {
      "page": "chk_setequal",
      "title": "Check Set Equal",
      "concept": [
        "set_checkers"
      ],
      "topics": [
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        "vld_setequal"
      ]
    },
    {
      "page": "chk_sorted",
      "title": "Check Sorted",
      "concept": [
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      ],
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        "vld_sorted"
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    {
      "page": "chk_string",
      "title": "Check String",
      "concept": [
        "scalar_checkers"
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      "topics": [
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        "vld_string"
      ]
    },
    {
      "page": "chk_subset",
      "title": "Check Subset",
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      "page": "chk_superset",
      "title": "Check Superset",
      "concept": [
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      ],
      "topics": [
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        "vld_superset"
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    {
      "page": "chk_true",
      "title": "Check TRUE",
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        "scalar_checkers"
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      "page": "chk_tz",
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      "concept": [
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        "vld_tz"
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    {
      "page": "chk_unique",
      "title": "Check Unique",
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      "concept": [
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    },
    {
      "page": "chk_vector",
      "title": "Check Vector",
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      "topics": [
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    },
    {
      "page": "chk_whole_number",
      "title": "Check Whole Number",
      "concept": [
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      "topics": [
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    },
    {
      "page": "chk_whole_numeric",
      "title": "Check Whole Numeric",
      "concept": [
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    },
    {
      "page": "chk_wnum",
      "title": "Check Whole Numeric Scalar",
      "concept": [
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      "topics": [
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    {
      "page": "chkor",
      "title": "Check OR",
      "topics": [
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      ]
    },
    {
      "page": "chkor_vld",
      "title": "Chk OR",
      "topics": [
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    },
    {
      "page": "deparse_backtick_chk",
      "title": "Deparse Backtick",
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    },
    {
      "page": "err",
      "title": "Stop, Warning and Message Messages",
      "topics": [
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    },
    {
      "page": "expect_chk_error",
      "title": "Expect Chk Error",
      "topics": [
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    },
    {
      "page": "generate_check_data",
      "title": "Generate 'check_data()' Code",
      "topics": [
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    },
    {
      "page": "message_chk",
      "title": "Construct Tidyverse Style Message",
      "topics": [
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    },
    {
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      "title": "Concatenate Strings",
      "topics": [
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  "_pkglogo": "https://github.com/poissonconsulting/chk/raw/HEAD/man/figures/logo.png",
  "_readme": "https://github.com/poissonconsulting/chk/raw/HEAD/README.md",
  "_rundeps": [
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      "filename": "chk-families.html",
      "title": "chk Families",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Introduction",
        "chk_ Functions",
        "Overview",
        "Missing Input Checker",
        "... Checker",
        "External Data Source Checkers",
        "NULL checker",
        "Scalar Checkers",
        "Date or DateTime Checkers",
        "Time Zone Checker",
        "Data Structure Checker",
        "Data Type Checkers",
        "Whole Number Checkers",
        "Factor Checker",
        "All Elements Checkers",
        "Function Checker",
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        "Equal Checkers",
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      "created": "2019-10-29 01:27:17",
      "modified": "2026-06-07 19:42:38",
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      "title": "Get Started with chk",
      "engine": "knitr::rmarkdown",
      "headings": [
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        "Goal",
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        "1. chk_ Functions",
        "2. vld_ Functions",
        "3. check_ Functions",
        "Using chk",
        "Extending chk",
        "abort_chk()"
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      "created": "2019-10-02 01:06:11",
      "modified": "2026-06-07 19:42:38",
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