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SOURCE_FILE
FN
FN_KW "fn"
WHITESPACE " "
NAME
IDENT "foo"
PARAM_LIST
L_PAREN "("
R_PAREN ")"
WHITESPACE " "
BLOCK_EXPR
STMT_LIST
L_CURLY "{"
WHITESPACE "\n "
LET_STMT
LET_KW "let"
WHITESPACE " "
WILDCARD_PAT
UNDERSCORE "_"
WHITESPACE " "
EQ "="
WHITESPACE " "
PATH_EXPR
PATH
PATH_SEGMENT
NAME_REF
IDENT "a"
SEMICOLON ";"
WHITESPACE "\n "
LET_STMT
LET_KW "let"
WHITESPACE " "
WILDCARD_PAT
UNDERSCORE "_"
WHITESPACE " "
EQ "="
WHITESPACE " "
PATH_EXPR
PATH
PATH
PATH_SEGMENT
NAME_REF
IDENT "a"
COLON2 "::"
PATH_SEGMENT
NAME_REF
IDENT "b"
SEMICOLON ";"
WHITESPACE "\n "
LET_STMT
LET_KW "let"
WHITESPACE " "
WILDCARD_PAT
UNDERSCORE "_"
WHITESPACE " "
EQ "="
WHITESPACE " "
PATH_EXPR
PATH
PATH_SEGMENT
COLON2 "::"
NAME_REF
IDENT "a"
GENERIC_ARG_LIST
COLON2 "::"
L_ANGLE "<"
TYPE_ARG
PATH_TYPE
PATH
PATH_SEGMENT
NAME_REF
IDENT "b"
R_ANGLE ">"
SEMICOLON ";"
WHITESPACE "\n "
LET_STMT
LET_KW "let"
WHITESPACE " "
WILDCARD_PAT
UNDERSCORE "_"
WHITESPACE " "
EQ "="
WHITESPACE " "
MACRO_EXPR
MACRO_CALL
PATH
PATH_SEGMENT
NAME_REF
IDENT "format"
BANG "!"
TOKEN_TREE
L_PAREN "("
R_PAREN ")"
SEMICOLON ";"
WHITESPACE "\n"
R_CURLY "}"
WHITESPACE "\n"