test.robot:12:5 ERR09 Setting '[Arguments]' is not supported in Test Case or Task. Allowed are: [Documentation], [Tags], [Setup], [Teardown], [Template], [Timeout]
    |
 10 | *** Test Case ***
 11 |     [Invalid]  arg
 12 |     [Arguments]  ${arg}
    |     ^^^^^^^^^^^ ERR09
 13 |     [Return]    ${value}
    |

test.robot:13:5 ERR09 Setting '[Return]' is not supported in Test Case or Task. Allowed are: [Documentation], [Tags], [Setup], [Teardown], [Template], [Timeout]
    |
 11 |     [Invalid]  arg
 12 |     [Arguments]  ${arg}
 13 |     [Return]    ${value}
    |     ^^^^^^^^ ERR09
    |

test.robot:18:5 ERR09 Setting '[Template]' is not supported in Keyword. Allowed are: [Documentation], [Tags], [Arguments], [Return], [Teardown], [Timeout]
    |
 16 |     [Invalid]    arg
 17 |     [Setup]    ${arg}
 18 |     [Template]    Keyword
    |     ^^^^^^^^^^ ERR09
 19 |     [Metadata]    Not valid.
 20 |     [Doc Umentation]
    |

test.robot:19:5 ERR09 Setting '[Metadata]' is not supported in Keyword. Allowed are: [Documentation], [Tags], [Arguments], [Return], [Teardown], [Timeout]
    |
 17 |     [Setup]    ${arg}
 18 |     [Template]    Keyword
 19 |     [Metadata]    Not valid.
    |     ^^^^^^^^^^ ERR09
 20 |     [Doc Umentation]
    |

Found 4 issues.